Home / 7,079.40-10,618.64-2,149.08

Finding the Fourth Proportional to 7,079.40, 10,618.64 and 2,149.08

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Solution

The fourth proportional to 7,079.40, 10,618.64 and 2,149.08 is: 3,223.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,079.40 : 10,618.64 = 2,149.08 : x
  2. Step 2: Convert to fraction form
    7,079.40/10,618.64 = 2,149.08/x
  3. Step 3: Cross multiply
    7,079.40x = 10,618.64 × 2,149.08
  4. Step 4: Simplify right side
    7,079.40x = 22,820,336.16
  5. Step 5: Solve for x
    x = 22,820,336.16/7,079.40
  6. Step 6: Final answer
    x = 3,223.48

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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.