Home / 7,132.18-9,842.48-3,945.31

Finding the Fourth Proportional to 7,132.18, 9,842.48 and 3,945.31

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Solution

The fourth proportional to 7,132.18, 9,842.48 and 3,945.31 is: 5,444.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,132.18 : 9,842.48 = 3,945.31 : x
  2. Step 2: Convert to fraction form
    7,132.18/9,842.48 = 3,945.31/x
  3. Step 3: Cross multiply
    7,132.18x = 9,842.48 × 3,945.31
  4. Step 4: Simplify right side
    7,132.18x = 38,831,634.77
  5. Step 5: Solve for x
    x = 38,831,634.77/7,132.18
  6. Step 6: Final answer
    x = 5,444.57

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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.