Home / 4,719.44-7,079.64-1,947.28

Finding the Fourth Proportional to 4,719.44, 7,079.64 and 1,947.28

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Solution

The fourth proportional to 4,719.44, 7,079.64 and 1,947.28 is: 2,921.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,719.44 : 7,079.64 = 1,947.28 : x
  2. Step 2: Convert to fraction form
    4,719.44/7,079.64 = 1,947.28/x
  3. Step 3: Cross multiply
    4,719.44x = 7,079.64 × 1,947.28
  4. Step 4: Simplify right side
    4,719.44x = 13,786,041.38
  5. Step 5: Solve for x
    x = 13,786,041.38/4,719.44
  6. Step 6: Final answer
    x = 2,921.12

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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.