Home / 2,874.80-4,312.01-926.84

Finding the Fourth Proportional to 2,874.80, 4,312.01 and 926.84

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Solution

The fourth proportional to 2,874.80, 4,312.01 and 926.84 is: 1,390.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874.80 : 4,312.01 = 926.84 : x
  2. Step 2: Convert to fraction form
    2,874.80/4,312.01 = 926.84/x
  3. Step 3: Cross multiply
    2,874.80x = 4,312.01 × 926.84
  4. Step 4: Simplify right side
    2,874.80x = 3,996,517.15
  5. Step 5: Solve for x
    x = 3,996,517.15/2,874.80
  6. Step 6: Final answer
    x = 1,390.19

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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.