Home / 3,430.13-5,145.48-1,557.17

Finding the Fourth Proportional to 3,430.13, 5,145.48 and 1,557.17

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Solution

The fourth proportional to 3,430.13, 5,145.48 and 1,557.17 is: 2,335.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.13 : 5,145.48 = 1,557.17 : x
  2. Step 2: Convert to fraction form
    3,430.13/5,145.48 = 1,557.17/x
  3. Step 3: Cross multiply
    3,430.13x = 5,145.48 × 1,557.17
  4. Step 4: Simplify right side
    3,430.13x = 8,012,387.09
  5. Step 5: Solve for x
    x = 8,012,387.09/3,430.13
  6. Step 6: Final answer
    x = 2,335.88

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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.