Home / 3,042.22-4,563.35-990.22

Finding the Fourth Proportional to 3,042.22, 4,563.35 and 990.22

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Solution

The fourth proportional to 3,042.22, 4,563.35 and 990.22 is: 1,485.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,042.22 : 4,563.35 = 990.22 : x
  2. Step 2: Convert to fraction form
    3,042.22/4,563.35 = 990.22/x
  3. Step 3: Cross multiply
    3,042.22x = 4,563.35 × 990.22
  4. Step 4: Simplify right side
    3,042.22x = 4,518,715.49
  5. Step 5: Solve for x
    x = 4,518,715.49/3,042.22
  6. Step 6: Final answer
    x = 1,485.33

Related Problems

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Half scale
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Double scale
Find fourth proportional to 3,043.22, 4,564.85 and 991.22
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.