Home / 7,421.20-10,240.92-4,277.20

Finding the Fourth Proportional to 7,421.20, 10,240.92 and 4,277.20

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Solution

The fourth proportional to 7,421.20, 10,240.92 and 4,277.20 is: 5,902.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.20 : 10,240.92 = 4,277.20 : x
  2. Step 2: Convert to fraction form
    7,421.20/10,240.92 = 4,277.20/x
  3. Step 3: Cross multiply
    7,421.20x = 10,240.92 × 4,277.20
  4. Step 4: Simplify right side
    7,421.20x = 43,802,463.02
  5. Step 5: Solve for x
    x = 43,802,463.02/7,421.20
  6. Step 6: Final answer
    x = 5,902.34

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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.