Home / 1,331.55-1,836.50-1,156.59

Finding the Fourth Proportional to 1,331.55, 1,836.50 and 1,156.59

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Solution

The fourth proportional to 1,331.55, 1,836.50 and 1,156.59 is: 1,595.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331.55 : 1,836.50 = 1,156.59 : x
  2. Step 2: Convert to fraction form
    1,331.55/1,836.50 = 1,156.59/x
  3. Step 3: Cross multiply
    1,331.55x = 1,836.50 × 1,156.59
  4. Step 4: Simplify right side
    1,331.55x = 2,124,071.75
  5. Step 5: Solve for x
    x = 2,124,071.75/1,331.55
  6. Step 6: Final answer
    x = 1,595.19

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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.