Home / 1,587.26-2,381.57-1,222.76

Finding the Fourth Proportional to 1,587.26, 2,381.57 and 1,222.76

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Solution

The fourth proportional to 1,587.26, 2,381.57 and 1,222.76 is: 1,834.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587.26 : 2,381.57 = 1,222.76 : x
  2. Step 2: Convert to fraction form
    1,587.26/2,381.57 = 1,222.76/x
  3. Step 3: Cross multiply
    1,587.26x = 2,381.57 × 1,222.76
  4. Step 4: Simplify right side
    1,587.26x = 2,912,088.53
  5. Step 5: Solve for x
    x = 2,912,088.53/1,587.26
  6. Step 6: Final answer
    x = 1,834.66

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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.