Home / 2,387.90-3,294.32-1,602.20

Finding the Fourth Proportional to 2,387.90, 3,294.32 and 1,602.20

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Solution

The fourth proportional to 2,387.90, 3,294.32 and 1,602.20 is: 2,210.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.90 : 3,294.32 = 1,602.20 : x
  2. Step 2: Convert to fraction form
    2,387.90/3,294.32 = 1,602.20/x
  3. Step 3: Cross multiply
    2,387.90x = 3,294.32 × 1,602.20
  4. Step 4: Simplify right side
    2,387.90x = 5,278,159.50
  5. Step 5: Solve for x
    x = 5,278,159.50/2,387.90
  6. Step 6: Final answer
    x = 2,210.38

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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.