Home / 2,551.59-3,519.57-2,125.11

Finding the Fourth Proportional to 2,551.59, 3,519.57 and 2,125.11

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Solution

The fourth proportional to 2,551.59, 3,519.57 and 2,125.11 is: 2,931.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,551.59 : 3,519.57 = 2,125.11 : x
  2. Step 2: Convert to fraction form
    2,551.59/3,519.57 = 2,125.11/x
  3. Step 3: Cross multiply
    2,551.59x = 3,519.57 × 2,125.11
  4. Step 4: Simplify right side
    2,551.59x = 7,479,473.40
  5. Step 5: Solve for x
    x = 7,479,473.40/2,551.59
  6. Step 6: Final answer
    x = 2,931.30

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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.