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Finding the Fourth Proportional to 4,750.30, 6,540.42 and 4,040.74

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Solution

The fourth proportional to 4,750.30, 6,540.42 and 4,040.74 is: 5,563.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,750.30 : 6,540.42 = 4,040.74 : x
  2. Step 2: Convert to fraction form
    4,750.30/6,540.42 = 4,040.74/x
  3. Step 3: Cross multiply
    4,750.30x = 6,540.42 × 4,040.74
  4. Step 4: Simplify right side
    4,750.30x = 26,428,136.71
  5. Step 5: Solve for x
    x = 26,428,136.71/4,750.30
  6. Step 6: Final answer
    x = 5,563.47

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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.