Home / 1,572.24-2,356.30-1,179.15

Finding the Fourth Proportional to 1,572.24, 2,356.30 and 1,179.15

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Solution

The fourth proportional to 1,572.24, 2,356.30 and 1,179.15 is: 1,767.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572.24 : 2,356.30 = 1,179.15 : x
  2. Step 2: Convert to fraction form
    1,572.24/2,356.30 = 1,179.15/x
  3. Step 3: Cross multiply
    1,572.24x = 2,356.30 × 1,179.15
  4. Step 4: Simplify right side
    1,572.24x = 2,778,428.20
  5. Step 5: Solve for x
    x = 2,778,428.20/1,572.24
  6. Step 6: Final answer
    x = 1,767.18

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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.