Home / 1,587.67-2,383.13-1,125.97

Finding the Fourth Proportional to 1,587.67, 2,383.13 and 1,125.97

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Solution

The fourth proportional to 1,587.67, 2,383.13 and 1,125.97 is: 1,690.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587.67 : 2,383.13 = 1,125.97 : x
  2. Step 2: Convert to fraction form
    1,587.67/2,383.13 = 1,125.97/x
  3. Step 3: Cross multiply
    1,587.67x = 2,383.13 × 1,125.97
  4. Step 4: Simplify right side
    1,587.67x = 2,683,332.89
  5. Step 5: Solve for x
    x = 2,683,332.89/1,587.67
  6. Step 6: Final answer
    x = 1,690.11

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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.