Home / 2,799.81-4,172.42-2,715.35

Finding the Fourth Proportional to 2,799.81, 4,172.42 and 2,715.35

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Solution

The fourth proportional to 2,799.81, 4,172.42 and 2,715.35 is: 4,046.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.81 : 4,172.42 = 2,715.35 : x
  2. Step 2: Convert to fraction form
    2,799.81/4,172.42 = 2,715.35/x
  3. Step 3: Cross multiply
    2,799.81x = 4,172.42 × 2,715.35
  4. Step 4: Simplify right side
    2,799.81x = 11,329,566.57
  5. Step 5: Solve for x
    x = 11,329,566.57/2,799.81
  6. Step 6: Final answer
    x = 4,046.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.