Home / 1,534.44-2,302.20-712.80

Finding the Fourth Proportional to 1,534.44, 2,302.20 and 712.80

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Solution

The fourth proportional to 1,534.44, 2,302.20 and 712.80 is: 1,069.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,534.44 : 2,302.20 = 712.80 : x
  2. Step 2: Convert to fraction form
    1,534.44/2,302.20 = 712.80/x
  3. Step 3: Cross multiply
    1,534.44x = 2,302.20 × 712.80
  4. Step 4: Simplify right side
    1,534.44x = 1,641,008.16
  5. Step 5: Solve for x
    x = 1,641,008.16/1,534.44
  6. Step 6: Final answer
    x = 1,069.45

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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.