Home / 3,100.02-4,274.42-2,312.70

Finding the Fourth Proportional to 3,100.02, 4,274.42 and 2,312.70

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Solution

The fourth proportional to 3,100.02, 4,274.42 and 2,312.70 is: 3,188.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.02 : 4,274.42 = 2,312.70 : x
  2. Step 2: Convert to fraction form
    3,100.02/4,274.42 = 2,312.70/x
  3. Step 3: Cross multiply
    3,100.02x = 4,274.42 × 2,312.70
  4. Step 4: Simplify right side
    3,100.02x = 9,885,439.57
  5. Step 5: Solve for x
    x = 9,885,439.57/3,100.02
  6. Step 6: Final answer
    x = 3,188.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.