Home / 1,025.39-1,538.19-294.91

Finding the Fourth Proportional to 1,025.39, 1,538.19 and 294.91

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Solution

The fourth proportional to 1,025.39, 1,538.19 and 294.91 is: 442.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025.39 : 1,538.19 = 294.91 : x
  2. Step 2: Convert to fraction form
    1,025.39/1,538.19 = 294.91/x
  3. Step 3: Cross multiply
    1,025.39x = 1,538.19 × 294.91
  4. Step 4: Simplify right side
    1,025.39x = 453,623.77
  5. Step 5: Solve for x
    x = 453,623.77/1,025.39
  6. Step 6: Final answer
    x = 442.39

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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.