Home / 3,125.88-4,696.12-2,688.48

Finding the Fourth Proportional to 3,125.88, 4,696.12 and 2,688.48

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Solution

The fourth proportional to 3,125.88, 4,696.12 and 2,688.48 is: 4,039.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.88 : 4,696.12 = 2,688.48 : x
  2. Step 2: Convert to fraction form
    3,125.88/4,696.12 = 2,688.48/x
  3. Step 3: Cross multiply
    3,125.88x = 4,696.12 × 2,688.48
  4. Step 4: Simplify right side
    3,125.88x = 12,625,424.70
  5. Step 5: Solve for x
    x = 12,625,424.70/3,125.88
  6. Step 6: Final answer
    x = 4,039.00

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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.