Home / 1,051.42-1,577.12-358.08

Finding the Fourth Proportional to 1,051.42, 1,577.12 and 358.08

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Solution

The fourth proportional to 1,051.42, 1,577.12 and 358.08 is: 537.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051.42 : 1,577.12 = 358.08 : x
  2. Step 2: Convert to fraction form
    1,051.42/1,577.12 = 358.08/x
  3. Step 3: Cross multiply
    1,051.42x = 1,577.12 × 358.08
  4. Step 4: Simplify right side
    1,051.42x = 564,735.13
  5. Step 5: Solve for x
    x = 564,735.13/1,051.42
  6. Step 6: Final answer
    x = 537.12

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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.