Home / 4,071.71-5,618.70-2,278.89

Finding the Fourth Proportional to 4,071.71, 5,618.70 and 2,278.89

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Solution

The fourth proportional to 4,071.71, 5,618.70 and 2,278.89 is: 3,144.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,071.71 : 5,618.70 = 2,278.89 : x
  2. Step 2: Convert to fraction form
    4,071.71/5,618.70 = 2,278.89/x
  3. Step 3: Cross multiply
    4,071.71x = 5,618.70 × 2,278.89
  4. Step 4: Simplify right side
    4,071.71x = 12,804,399.24
  5. Step 5: Solve for x
    x = 12,804,399.24/4,071.71
  6. Step 6: Final answer
    x = 3,144.72

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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.