Home / 7,224.30-9,969.48-4,240.20

Finding the Fourth Proportional to 7,224.30, 9,969.48 and 4,240.20

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Solution

The fourth proportional to 7,224.30, 9,969.48 and 4,240.20 is: 5,851.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,224.30 : 9,969.48 = 4,240.20 : x
  2. Step 2: Convert to fraction form
    7,224.30/9,969.48 = 4,240.20/x
  3. Step 3: Cross multiply
    7,224.30x = 9,969.48 × 4,240.20
  4. Step 4: Simplify right side
    7,224.30x = 42,272,589.10
  5. Step 5: Solve for x
    x = 42,272,589.10/7,224.30
  6. Step 6: Final answer
    x = 5,851.44

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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.