Home / 3,153.28-4,702.34-3,078.76

Finding the Fourth Proportional to 3,153.28, 4,702.34 and 3,078.76

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Solution

The fourth proportional to 3,153.28, 4,702.34 and 3,078.76 is: 4,591.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.28 : 4,702.34 = 3,078.76 : x
  2. Step 2: Convert to fraction form
    3,153.28/4,702.34 = 3,078.76/x
  3. Step 3: Cross multiply
    3,153.28x = 4,702.34 × 3,078.76
  4. Step 4: Simplify right side
    3,153.28x = 14,477,376.30
  5. Step 5: Solve for x
    x = 14,477,376.30/3,153.28
  6. Step 6: Final answer
    x = 4,591.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.