Home / 7,419.60-10,240.08-4,275.24

Finding the Fourth Proportional to 7,419.60, 10,240.08 and 4,275.24

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Solution

The fourth proportional to 7,419.60, 10,240.08 and 4,275.24 is: 5,900.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.60 : 10,240.08 = 4,275.24 : x
  2. Step 2: Convert to fraction form
    7,419.60/10,240.08 = 4,275.24/x
  3. Step 3: Cross multiply
    7,419.60x = 10,240.08 × 4,275.24
  4. Step 4: Simplify right side
    7,419.60x = 43,778,799.62
  5. Step 5: Solve for x
    x = 43,778,799.62/7,419.60
  6. Step 6: Final answer
    x = 5,900.43

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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.