Home / 1,581.35-2,371.17-526.70

Finding the Fourth Proportional to 1,581.35, 2,371.17 and 526.70

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Solution

The fourth proportional to 1,581.35, 2,371.17 and 526.70 is: 789.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581.35 : 2,371.17 = 526.70 : x
  2. Step 2: Convert to fraction form
    1,581.35/2,371.17 = 526.70/x
  3. Step 3: Cross multiply
    1,581.35x = 2,371.17 × 526.70
  4. Step 4: Simplify right side
    1,581.35x = 1,248,883.38
  5. Step 5: Solve for x
    x = 1,248,883.38/1,581.35
  6. Step 6: Final answer
    x = 789.76

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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.