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Finding the Fourth Proportional to 1,355, 2,032.50 and 586.04

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Solution

The fourth proportional to 1,355, 2,032.50 and 586.04 is: 879.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355 : 2,032.50 = 586.04 : x
  2. Step 2: Convert to fraction form
    1,355/2,032.50 = 586.04/x
  3. Step 3: Cross multiply
    1,355x = 2,032.50 × 586.04
  4. Step 4: Simplify right side
    1,355x = 1,191,126.30
  5. Step 5: Solve for x
    x = 1,191,126.30/1,355
  6. Step 6: Final answer
    x = 879.06

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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.