Home / 4,740.56-6,540.36-2,877.20

Finding the Fourth Proportional to 4,740.56, 6,540.36 and 2,877.20

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Solution

The fourth proportional to 4,740.56, 6,540.36 and 2,877.20 is: 3,969.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,740.56 : 6,540.36 = 2,877.20 : x
  2. Step 2: Convert to fraction form
    4,740.56/6,540.36 = 2,877.20/x
  3. Step 3: Cross multiply
    4,740.56x = 6,540.36 × 2,877.20
  4. Step 4: Simplify right side
    4,740.56x = 18,817,923.79
  5. Step 5: Solve for x
    x = 18,817,923.79/4,740.56
  6. Step 6: Final answer
    x = 3,969.56

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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.