Home / 3,090.50-4,266.85-2,030.15

Finding the Fourth Proportional to 3,090.50, 4,266.85 and 2,030.15

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Solution

The fourth proportional to 3,090.50, 4,266.85 and 2,030.15 is: 2,802.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.50 : 4,266.85 = 2,030.15 : x
  2. Step 2: Convert to fraction form
    3,090.50/4,266.85 = 2,030.15/x
  3. Step 3: Cross multiply
    3,090.50x = 4,266.85 × 2,030.15
  4. Step 4: Simplify right side
    3,090.50x = 8,662,336.63
  5. Step 5: Solve for x
    x = 8,662,336.63/3,090.50
  6. Step 6: Final answer
    x = 2,802.90

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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.