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Finding the Fourth Proportional to 7,420.52, 10,244.06 and 4,276.12

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Solution

The fourth proportional to 7,420.52, 10,244.06 and 4,276.12 is: 5,903.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.52 : 10,244.06 = 4,276.12 : x
  2. Step 2: Convert to fraction form
    7,420.52/10,244.06 = 4,276.12/x
  3. Step 3: Cross multiply
    7,420.52x = 10,244.06 × 4,276.12
  4. Step 4: Simplify right side
    7,420.52x = 43,804,829.85
  5. Step 5: Solve for x
    x = 43,804,829.85/7,420.52
  6. Step 6: Final answer
    x = 5,903.20

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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.