Home / 7,321.14-10,981.35-2,390.13

Finding the Fourth Proportional to 7,321.14, 10,981.35 and 2,390.13

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Solution

The fourth proportional to 7,321.14, 10,981.35 and 2,390.13 is: 3,585.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.14 : 10,981.35 = 2,390.13 : x
  2. Step 2: Convert to fraction form
    7,321.14/10,981.35 = 2,390.13/x
  3. Step 3: Cross multiply
    7,321.14x = 10,981.35 × 2,390.13
  4. Step 4: Simplify right side
    7,321.14x = 26,246,854.08
  5. Step 5: Solve for x
    x = 26,246,854.08/7,321.14
  6. Step 6: Final answer
    x = 3,585.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.