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Finding the Fourth Proportional to 2,070.16, 3,103.02 and 770.92

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Solution

The fourth proportional to 2,070.16, 3,103.02 and 770.92 is: 1,155.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,070.16 : 3,103.02 = 770.92 : x
  2. Step 2: Convert to fraction form
    2,070.16/3,103.02 = 770.92/x
  3. Step 3: Cross multiply
    2,070.16x = 3,103.02 × 770.92
  4. Step 4: Simplify right side
    2,070.16x = 2,392,180.18
  5. Step 5: Solve for x
    x = 2,392,180.18/2,070.16
  6. Step 6: Final answer
    x = 1,155.55

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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.