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Finding the Fourth Proportional to 7,243.40, 10,862.40 and 5,045.60

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Solution

The fourth proportional to 7,243.40, 10,862.40 and 5,045.60 is: 7,566.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,243.40 : 10,862.40 = 5,045.60 : x
  2. Step 2: Convert to fraction form
    7,243.40/10,862.40 = 5,045.60/x
  3. Step 3: Cross multiply
    7,243.40x = 10,862.40 × 5,045.60
  4. Step 4: Simplify right side
    7,243.40x = 54,807,325.44
  5. Step 5: Solve for x
    x = 54,807,325.44/7,243.40
  6. Step 6: Final answer
    x = 7,566.52

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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.