Home / 3,155.28-4,705.32-3,080.76

Finding the Fourth Proportional to 3,155.28, 4,705.32 and 3,080.76

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Solution

The fourth proportional to 3,155.28, 4,705.32 and 3,080.76 is: 4,594.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.28 : 4,705.32 = 3,080.76 : x
  2. Step 2: Convert to fraction form
    3,155.28/4,705.32 = 3,080.76/x
  3. Step 3: Cross multiply
    3,155.28x = 4,705.32 × 3,080.76
  4. Step 4: Simplify right side
    3,155.28x = 14,495,961.64
  5. Step 5: Solve for x
    x = 14,495,961.64/3,155.28
  6. Step 6: Final answer
    x = 4,594.19

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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.