Home / 7,209.02-9,948.45-4,065.21

Finding the Fourth Proportional to 7,209.02, 9,948.45 and 4,065.21

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Solution

The fourth proportional to 7,209.02, 9,948.45 and 4,065.21 is: 5,610.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209.02 : 9,948.45 = 4,065.21 : x
  2. Step 2: Convert to fraction form
    7,209.02/9,948.45 = 4,065.21/x
  3. Step 3: Cross multiply
    7,209.02x = 9,948.45 × 4,065.21
  4. Step 4: Simplify right side
    7,209.02x = 40,442,538.42
  5. Step 5: Solve for x
    x = 40,442,538.42/7,209.02
  6. Step 6: Final answer
    x = 5,610.00

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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.