Home / 4,977.36-6,868.92-2,853.20

Finding the Fourth Proportional to 4,977.36, 6,868.92 and 2,853.20

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Solution

The fourth proportional to 4,977.36, 6,868.92 and 2,853.20 is: 3,937.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.36 : 6,868.92 = 2,853.20 : x
  2. Step 2: Convert to fraction form
    4,977.36/6,868.92 = 2,853.20/x
  3. Step 3: Cross multiply
    4,977.36x = 6,868.92 × 2,853.20
  4. Step 4: Simplify right side
    4,977.36x = 19,598,402.54
  5. Step 5: Solve for x
    x = 19,598,402.54/4,977.36
  6. Step 6: Final answer
    x = 3,937.51

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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.