Home / 4,047.28-5,587.32-2,803.12

Finding the Fourth Proportional to 4,047.28, 5,587.32 and 2,803.12

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Solution

The fourth proportional to 4,047.28, 5,587.32 and 2,803.12 is: 3,869.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,047.28 : 5,587.32 = 2,803.12 : x
  2. Step 2: Convert to fraction form
    4,047.28/5,587.32 = 2,803.12/x
  3. Step 3: Cross multiply
    4,047.28x = 5,587.32 × 2,803.12
  4. Step 4: Simplify right side
    4,047.28x = 15,661,928.44
  5. Step 5: Solve for x
    x = 15,661,928.44/4,047.28
  6. Step 6: Final answer
    x = 3,869.74

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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.