Home / 7,132.22-9,842.58-3,945.68

Finding the Fourth Proportional to 7,132.22, 9,842.58 and 3,945.68

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Solution

The fourth proportional to 7,132.22, 9,842.58 and 3,945.68 is: 5,445.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,132.22 : 9,842.58 = 3,945.68 : x
  2. Step 2: Convert to fraction form
    7,132.22/9,842.58 = 3,945.68/x
  3. Step 3: Cross multiply
    7,132.22x = 9,842.58 × 3,945.68
  4. Step 4: Simplify right side
    7,132.22x = 38,835,671.05
  5. Step 5: Solve for x
    x = 38,835,671.05/7,132.22
  6. Step 6: Final answer
    x = 5,445.10

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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.