Home / 4,977.28-6,877.44-3,937.60

Finding the Fourth Proportional to 4,977.28, 6,877.44 and 3,937.60

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Solution

The fourth proportional to 4,977.28, 6,877.44 and 3,937.60 is: 5,440.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.28 : 6,877.44 = 3,937.60 : x
  2. Step 2: Convert to fraction form
    4,977.28/6,877.44 = 3,937.60/x
  3. Step 3: Cross multiply
    4,977.28x = 6,877.44 × 3,937.60
  4. Step 4: Simplify right side
    4,977.28x = 27,080,607.74
  5. Step 5: Solve for x
    x = 27,080,607.74/4,977.28
  6. Step 6: Final answer
    x = 5,440.84

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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.