Home / 7,538.45-10,402.16-4,180.59

Finding the Fourth Proportional to 7,538.45, 10,402.16 and 4,180.59

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Solution

The fourth proportional to 7,538.45, 10,402.16 and 4,180.59 is: 5,768.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,538.45 : 10,402.16 = 4,180.59 : x
  2. Step 2: Convert to fraction form
    7,538.45/10,402.16 = 4,180.59/x
  3. Step 3: Cross multiply
    7,538.45x = 10,402.16 × 4,180.59
  4. Step 4: Simplify right side
    7,538.45x = 43,487,145.17
  5. Step 5: Solve for x
    x = 43,487,145.17/7,538.45
  6. Step 6: Final answer
    x = 5,768.72

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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.