Home / 5,156.22-7,115.04-2,917.74

Finding the Fourth Proportional to 5,156.22, 7,115.04 and 2,917.74

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Solution

The fourth proportional to 5,156.22, 7,115.04 and 2,917.74 is: 4,026.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.22 : 7,115.04 = 2,917.74 : x
  2. Step 2: Convert to fraction form
    5,156.22/7,115.04 = 2,917.74/x
  3. Step 3: Cross multiply
    5,156.22x = 7,115.04 × 2,917.74
  4. Step 4: Simplify right side
    5,156.22x = 20,759,836.81
  5. Step 5: Solve for x
    x = 20,759,836.81/5,156.22
  6. Step 6: Final answer
    x = 4,026.17

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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.