Home / 4,977.48-6,868.60-2,989.16

Finding the Fourth Proportional to 4,977.48, 6,868.60 and 2,989.16

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Solution

The fourth proportional to 4,977.48, 6,868.60 and 2,989.16 is: 4,124.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.48 : 6,868.60 = 2,989.16 : x
  2. Step 2: Convert to fraction form
    4,977.48/6,868.60 = 2,989.16/x
  3. Step 3: Cross multiply
    4,977.48x = 6,868.60 × 2,989.16
  4. Step 4: Simplify right side
    4,977.48x = 20,531,344.38
  5. Step 5: Solve for x
    x = 20,531,344.38/4,977.48
  6. Step 6: Final answer
    x = 4,124.85

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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.