Home / 2,888.32-4,331.28-1,038.88

Finding the Fourth Proportional to 2,888.32, 4,331.28 and 1,038.88

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Solution

The fourth proportional to 2,888.32, 4,331.28 and 1,038.88 is: 1,557.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888.32 : 4,331.28 = 1,038.88 : x
  2. Step 2: Convert to fraction form
    2,888.32/4,331.28 = 1,038.88/x
  3. Step 3: Cross multiply
    2,888.32x = 4,331.28 × 1,038.88
  4. Step 4: Simplify right side
    2,888.32x = 4,499,680.17
  5. Step 5: Solve for x
    x = 4,499,680.17/2,888.32
  6. Step 6: Final answer
    x = 1,557.89

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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.