Home / 7,419.47-10,238.63-4,062.20

Finding the Fourth Proportional to 7,419.47, 10,238.63 and 4,062.20

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Solution

The fourth proportional to 7,419.47, 10,238.63 and 4,062.20 is: 5,605.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.47 : 10,238.63 = 4,062.20 : x
  2. Step 2: Convert to fraction form
    7,419.47/10,238.63 = 4,062.20/x
  3. Step 3: Cross multiply
    7,419.47x = 10,238.63 × 4,062.20
  4. Step 4: Simplify right side
    7,419.47x = 41,591,291.28
  5. Step 5: Solve for x
    x = 41,591,291.28/7,419.47
  6. Step 6: Final answer
    x = 5,605.70

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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.