Home / 5,247.44-7,870.28-1,959.66

Finding the Fourth Proportional to 5,247.44, 7,870.28 and 1,959.66

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Solution

The fourth proportional to 5,247.44, 7,870.28 and 1,959.66 is: 2,939.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.44 : 7,870.28 = 1,959.66 : x
  2. Step 2: Convert to fraction form
    5,247.44/7,870.28 = 1,959.66/x
  3. Step 3: Cross multiply
    5,247.44x = 7,870.28 × 1,959.66
  4. Step 4: Simplify right side
    5,247.44x = 15,423,072.90
  5. Step 5: Solve for x
    x = 15,423,072.90/5,247.44
  6. Step 6: Final answer
    x = 2,939.16

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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.