Home / 3,101.57-4,280.18-1,685.27

Finding the Fourth Proportional to 3,101.57, 4,280.18 and 1,685.27

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Solution

The fourth proportional to 3,101.57, 4,280.18 and 1,685.27 is: 2,325.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.57 : 4,280.18 = 1,685.27 : x
  2. Step 2: Convert to fraction form
    3,101.57/4,280.18 = 1,685.27/x
  3. Step 3: Cross multiply
    3,101.57x = 4,280.18 × 1,685.27
  4. Step 4: Simplify right side
    3,101.57x = 7,213,242.61
  5. Step 5: Solve for x
    x = 7,213,242.61/3,101.57
  6. Step 6: Final answer
    x = 2,325.68

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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.