Home / 2,688.55-3,706.95-2,314.87

Finding the Fourth Proportional to 2,688.55, 3,706.95 and 2,314.87

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Solution

The fourth proportional to 2,688.55, 3,706.95 and 2,314.87 is: 3,191.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.55 : 3,706.95 = 2,314.87 : x
  2. Step 2: Convert to fraction form
    2,688.55/3,706.95 = 2,314.87/x
  3. Step 3: Cross multiply
    2,688.55x = 3,706.95 × 2,314.87
  4. Step 4: Simplify right side
    2,688.55x = 8,581,107.35
  5. Step 5: Solve for x
    x = 8,581,107.35/2,688.55
  6. Step 6: Final answer
    x = 3,191.72

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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.