Home / 1,577.79-2,176.17-1,158.02

Finding the Fourth Proportional to 1,577.79, 2,176.17 and 1,158.02

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Solution

The fourth proportional to 1,577.79, 2,176.17 and 1,158.02 is: 1,597.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,577.79 : 2,176.17 = 1,158.02 : x
  2. Step 2: Convert to fraction form
    1,577.79/2,176.17 = 1,158.02/x
  3. Step 3: Cross multiply
    1,577.79x = 2,176.17 × 1,158.02
  4. Step 4: Simplify right side
    1,577.79x = 2,520,037.50
  5. Step 5: Solve for x
    x = 2,520,037.50/1,577.79
  6. Step 6: Final answer
    x = 1,597.19

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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.