Home / 1,354.59-2,031.89-986.74

Finding the Fourth Proportional to 1,354.59, 2,031.89 and 986.74

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Solution

The fourth proportional to 1,354.59, 2,031.89 and 986.74 is: 1,480.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354.59 : 2,031.89 = 986.74 : x
  2. Step 2: Convert to fraction form
    1,354.59/2,031.89 = 986.74/x
  3. Step 3: Cross multiply
    1,354.59x = 2,031.89 × 986.74
  4. Step 4: Simplify right side
    1,354.59x = 2,004,947.14
  5. Step 5: Solve for x
    x = 2,004,947.14/1,354.59
  6. Step 6: Final answer
    x = 1,480.11

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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.