Home / 1,587.77-2,378.94-1,123.26

Finding the Fourth Proportional to 1,587.77, 2,378.94 and 1,123.26

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Solution

The fourth proportional to 1,587.77, 2,378.94 and 1,123.26 is: 1,682.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587.77 : 2,378.94 = 1,123.26 : x
  2. Step 2: Convert to fraction form
    1,587.77/2,378.94 = 1,123.26/x
  3. Step 3: Cross multiply
    1,587.77x = 2,378.94 × 1,123.26
  4. Step 4: Simplify right side
    1,587.77x = 2,672,168.14
  5. Step 5: Solve for x
    x = 2,672,168.14/1,587.77
  6. Step 6: Final answer
    x = 1,682.97

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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.