Home / 1,285.66-1,925.90-591.36

Finding the Fourth Proportional to 1,285.66, 1,925.90 and 591.36

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Solution

The fourth proportional to 1,285.66, 1,925.90 and 591.36 is: 885.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285.66 : 1,925.90 = 591.36 : x
  2. Step 2: Convert to fraction form
    1,285.66/1,925.90 = 591.36/x
  3. Step 3: Cross multiply
    1,285.66x = 1,925.90 × 591.36
  4. Step 4: Simplify right side
    1,285.66x = 1,138,894.48
  5. Step 5: Solve for x
    x = 1,138,894.48/1,285.66
  6. Step 6: Final answer
    x = 885.85

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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.