Home / 3,040.30-4,195.61-1,643.05

Finding the Fourth Proportional to 3,040.30, 4,195.61 and 1,643.05

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Solution

The fourth proportional to 3,040.30, 4,195.61 and 1,643.05 is: 2,267.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,040.30 : 4,195.61 = 1,643.05 : x
  2. Step 2: Convert to fraction form
    3,040.30/4,195.61 = 1,643.05/x
  3. Step 3: Cross multiply
    3,040.30x = 4,195.61 × 1,643.05
  4. Step 4: Simplify right side
    3,040.30x = 6,893,588.80
  5. Step 5: Solve for x
    x = 6,893,588.80/3,040.30
  6. Step 6: Final answer
    x = 2,267.40

Related Problems

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Half scale
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Double scale
Find fourth proportional to 3,041.30, 4,196.98 and 1,644.05
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.