Home / 1,340.12-2,010.10-366.20

Finding the Fourth Proportional to 1,340.12, 2,010.10 and 366.20

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Solution

The fourth proportional to 1,340.12, 2,010.10 and 366.20 is: 549.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340.12 : 2,010.10 = 366.20 : x
  2. Step 2: Convert to fraction form
    1,340.12/2,010.10 = 366.20/x
  3. Step 3: Cross multiply
    1,340.12x = 2,010.10 × 366.20
  4. Step 4: Simplify right side
    1,340.12x = 736,098.62
  5. Step 5: Solve for x
    x = 736,098.62/1,340.12
  6. Step 6: Final answer
    x = 549.28

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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.