Home / 7,279.68-10,045.56-3,967.68

Finding the Fourth Proportional to 7,279.68, 10,045.56 and 3,967.68

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Solution

The fourth proportional to 7,279.68, 10,045.56 and 3,967.68 is: 5,475.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.68 : 10,045.56 = 3,967.68 : x
  2. Step 2: Convert to fraction form
    7,279.68/10,045.56 = 3,967.68/x
  3. Step 3: Cross multiply
    7,279.68x = 10,045.56 × 3,967.68
  4. Step 4: Simplify right side
    7,279.68x = 39,857,567.50
  5. Step 5: Solve for x
    x = 39,857,567.50/7,279.68
  6. Step 6: Final answer
    x = 5,475.18

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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.