Home / 2,888.20-4,331.68-1,039.42

Finding the Fourth Proportional to 2,888.20, 4,331.68 and 1,039.42

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Solution

The fourth proportional to 2,888.20, 4,331.68 and 1,039.42 is: 1,558.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888.20 : 4,331.68 = 1,039.42 : x
  2. Step 2: Convert to fraction form
    2,888.20/4,331.68 = 1,039.42/x
  3. Step 3: Cross multiply
    2,888.20x = 4,331.68 × 1,039.42
  4. Step 4: Simplify right side
    2,888.20x = 4,502,434.83
  5. Step 5: Solve for x
    x = 4,502,434.83/2,888.20
  6. Step 6: Final answer
    x = 1,558.91

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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.