Home / 2,888.15-4,331.09-1,038.71

Finding the Fourth Proportional to 2,888.15, 4,331.09 and 1,038.71

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Solution

The fourth proportional to 2,888.15, 4,331.09 and 1,038.71 is: 1,557.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888.15 : 4,331.09 = 1,038.71 : x
  2. Step 2: Convert to fraction form
    2,888.15/4,331.09 = 1,038.71/x
  3. Step 3: Cross multiply
    2,888.15x = 4,331.09 × 1,038.71
  4. Step 4: Simplify right side
    2,888.15x = 4,498,719.64
  5. Step 5: Solve for x
    x = 4,498,719.64/2,888.15
  6. Step 6: Final answer
    x = 1,557.65

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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.