Home / 4,977.52-6,868.24-2,881.28

Finding the Fourth Proportional to 4,977.52, 6,868.24 and 2,881.28

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Solution

The fourth proportional to 4,977.52, 6,868.24 and 2,881.28 is: 3,975.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.52 : 6,868.24 = 2,881.28 : x
  2. Step 2: Convert to fraction form
    4,977.52/6,868.24 = 2,881.28/x
  3. Step 3: Cross multiply
    4,977.52x = 6,868.24 × 2,881.28
  4. Step 4: Simplify right side
    4,977.52x = 19,789,322.55
  5. Step 5: Solve for x
    x = 19,789,322.55/4,977.52
  6. Step 6: Final answer
    x = 3,975.74

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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.