Home / 1,426.59-1,967.11-928.44

Finding the Fourth Proportional to 1,426.59, 1,967.11 and 928.44

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Solution

The fourth proportional to 1,426.59, 1,967.11 and 928.44 is: 1,280.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426.59 : 1,967.11 = 928.44 : x
  2. Step 2: Convert to fraction form
    1,426.59/1,967.11 = 928.44/x
  3. Step 3: Cross multiply
    1,426.59x = 1,967.11 × 928.44
  4. Step 4: Simplify right side
    1,426.59x = 1,826,343.61
  5. Step 5: Solve for x
    x = 1,826,343.61/1,426.59
  6. Step 6: Final answer
    x = 1,280.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.