Home / 3,945.74-5,445-2,373.56

Finding the Fourth Proportional to 3,945.74, 5,445 and 2,373.56

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Solution

The fourth proportional to 3,945.74, 5,445 and 2,373.56 is: 3,275.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.74 : 5,445 = 2,373.56 : x
  2. Step 2: Convert to fraction form
    3,945.74/5,445 = 2,373.56/x
  3. Step 3: Cross multiply
    3,945.74x = 5,445 × 2,373.56
  4. Step 4: Simplify right side
    3,945.74x = 12,924,034.20
  5. Step 5: Solve for x
    x = 12,924,034.20/3,945.74
  6. Step 6: Final answer
    x = 3,275.44

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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.