Home / 1,154.35-1,731.88-1,031.84

Finding the Fourth Proportional to 1,154.35, 1,731.88 and 1,031.84

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Solution

The fourth proportional to 1,154.35, 1,731.88 and 1,031.84 is: 1,548.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154.35 : 1,731.88 = 1,031.84 : x
  2. Step 2: Convert to fraction form
    1,154.35/1,731.88 = 1,031.84/x
  3. Step 3: Cross multiply
    1,154.35x = 1,731.88 × 1,031.84
  4. Step 4: Simplify right side
    1,154.35x = 1,787,022.18
  5. Step 5: Solve for x
    x = 1,787,022.18/1,154.35
  6. Step 6: Final answer
    x = 1,548.07

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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.