Home / 1,284.72-1,926.90-462.88

Finding the Fourth Proportional to 1,284.72, 1,926.90 and 462.88

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Solution

The fourth proportional to 1,284.72, 1,926.90 and 462.88 is: 694.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284.72 : 1,926.90 = 462.88 : x
  2. Step 2: Convert to fraction form
    1,284.72/1,926.90 = 462.88/x
  3. Step 3: Cross multiply
    1,284.72x = 1,926.90 × 462.88
  4. Step 4: Simplify right side
    1,284.72x = 891,923.47
  5. Step 5: Solve for x
    x = 891,923.47/1,284.72
  6. Step 6: Final answer
    x = 694.26

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1.5x scale

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.