Home / 7,404.28-10,218.64-4,420.12

Finding the Fourth Proportional to 7,404.28, 10,218.64 and 4,420.12

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Solution

The fourth proportional to 7,404.28, 10,218.64 and 4,420.12 is: 6,100.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,404.28 : 10,218.64 = 4,420.12 : x
  2. Step 2: Convert to fraction form
    7,404.28/10,218.64 = 4,420.12/x
  3. Step 3: Cross multiply
    7,404.28x = 10,218.64 × 4,420.12
  4. Step 4: Simplify right side
    7,404.28x = 45,167,615.04
  5. Step 5: Solve for x
    x = 45,167,615.04/7,404.28
  6. Step 6: Final answer
    x = 6,100.20

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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.