Home / 1,587.24-2,190.74-924.39

Finding the Fourth Proportional to 1,587.24, 2,190.74 and 924.39

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Solution

The fourth proportional to 1,587.24, 2,190.74 and 924.39 is: 1,275.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587.24 : 2,190.74 = 924.39 : x
  2. Step 2: Convert to fraction form
    1,587.24/2,190.74 = 924.39/x
  3. Step 3: Cross multiply
    1,587.24x = 2,190.74 × 924.39
  4. Step 4: Simplify right side
    1,587.24x = 2,025,093.53
  5. Step 5: Solve for x
    x = 2,025,093.53/1,587.24
  6. Step 6: Final answer
    x = 1,275.86

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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.