Home / 7,537.89-10,402.12-4,180.64

Finding the Fourth Proportional to 7,537.89, 10,402.12 and 4,180.64

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Solution

The fourth proportional to 7,537.89, 10,402.12 and 4,180.64 is: 5,769.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,537.89 : 10,402.12 = 4,180.64 : x
  2. Step 2: Convert to fraction form
    7,537.89/10,402.12 = 4,180.64/x
  3. Step 3: Cross multiply
    7,537.89x = 10,402.12 × 4,180.64
  4. Step 4: Simplify right side
    7,537.89x = 43,487,518.96
  5. Step 5: Solve for x
    x = 43,487,518.96/7,537.89
  6. Step 6: Final answer
    x = 5,769.19

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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.