Home / 7,310.90-10,966.35-2,117.30

Finding the Fourth Proportional to 7,310.90, 10,966.35 and 2,117.30

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Solution

The fourth proportional to 7,310.90, 10,966.35 and 2,117.30 is: 3,175.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,310.90 : 10,966.35 = 2,117.30 : x
  2. Step 2: Convert to fraction form
    7,310.90/10,966.35 = 2,117.30/x
  3. Step 3: Cross multiply
    7,310.90x = 10,966.35 × 2,117.30
  4. Step 4: Simplify right side
    7,310.90x = 23,219,052.86
  5. Step 5: Solve for x
    x = 23,219,052.86/7,310.90
  6. Step 6: Final answer
    x = 3,175.95

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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.