Home / 7,344.10-10,134.86-3,986.91

Finding the Fourth Proportional to 7,344.10, 10,134.86 and 3,986.91

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Solution

The fourth proportional to 7,344.10, 10,134.86 and 3,986.91 is: 5,501.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,344.10 : 10,134.86 = 3,986.91 : x
  2. Step 2: Convert to fraction form
    7,344.10/10,134.86 = 3,986.91/x
  3. Step 3: Cross multiply
    7,344.10x = 10,134.86 × 3,986.91
  4. Step 4: Simplify right side
    7,344.10x = 40,406,774.68
  5. Step 5: Solve for x
    x = 40,406,774.68/7,344.10
  6. Step 6: Final answer
    x = 5,501.94

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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.