Home / 3,288.47-4,931.38-1,555.88

Finding the Fourth Proportional to 3,288.47, 4,931.38 and 1,555.88

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Solution

The fourth proportional to 3,288.47, 4,931.38 and 1,555.88 is: 2,333.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,288.47 : 4,931.38 = 1,555.88 : x
  2. Step 2: Convert to fraction form
    3,288.47/4,931.38 = 1,555.88/x
  3. Step 3: Cross multiply
    3,288.47x = 4,931.38 × 1,555.88
  4. Step 4: Simplify right side
    3,288.47x = 7,672,612.80
  5. Step 5: Solve for x
    x = 7,672,612.80/3,288.47
  6. Step 6: Final answer
    x = 2,333.19

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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.