Home / 4,047.52-5,587.92-2,807.20

Finding the Fourth Proportional to 4,047.52, 5,587.92 and 2,807.20

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Solution

The fourth proportional to 4,047.52, 5,587.92 and 2,807.20 is: 3,875.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,047.52 : 5,587.92 = 2,807.20 : x
  2. Step 2: Convert to fraction form
    4,047.52/5,587.92 = 2,807.20/x
  3. Step 3: Cross multiply
    4,047.52x = 5,587.92 × 2,807.20
  4. Step 4: Simplify right side
    4,047.52x = 15,686,409.02
  5. Step 5: Solve for x
    x = 15,686,409.02/4,047.52
  6. Step 6: Final answer
    x = 3,875.56

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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.