Home / 2,137.50-2,948.76-1,252.89

Finding the Fourth Proportional to 2,137.50, 2,948.76 and 1,252.89

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Solution

The fourth proportional to 2,137.50, 2,948.76 and 1,252.89 is: 1,728.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137.50 : 2,948.76 = 1,252.89 : x
  2. Step 2: Convert to fraction form
    2,137.50/2,948.76 = 1,252.89/x
  3. Step 3: Cross multiply
    2,137.50x = 2,948.76 × 1,252.89
  4. Step 4: Simplify right side
    2,137.50x = 3,694,471.92
  5. Step 5: Solve for x
    x = 3,694,471.92/2,137.50
  6. Step 6: Final answer
    x = 1,728.41

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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.