Home / 2,686.17-3,706.08-1,551.70

Finding the Fourth Proportional to 2,686.17, 3,706.08 and 1,551.70

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Solution

The fourth proportional to 2,686.17, 3,706.08 and 1,551.70 is: 2,140.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.17 : 3,706.08 = 1,551.70 : x
  2. Step 2: Convert to fraction form
    2,686.17/3,706.08 = 1,551.70/x
  3. Step 3: Cross multiply
    2,686.17x = 3,706.08 × 1,551.70
  4. Step 4: Simplify right side
    2,686.17x = 5,750,724.34
  5. Step 5: Solve for x
    x = 5,750,724.34/2,686.17
  6. Step 6: Final answer
    x = 2,140.86

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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.