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Finding the Fourth Proportional to 5,155.93, 7,114.08 and 2,917.09

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Solution

The fourth proportional to 5,155.93, 7,114.08 and 2,917.09 is: 4,024.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.93 : 7,114.08 = 2,917.09 : x
  2. Step 2: Convert to fraction form
    5,155.93/7,114.08 = 2,917.09/x
  3. Step 3: Cross multiply
    5,155.93x = 7,114.08 × 2,917.09
  4. Step 4: Simplify right side
    5,155.93x = 20,752,411.63
  5. Step 5: Solve for x
    x = 20,752,411.63/5,155.93
  6. Step 6: Final answer
    x = 4,024.96

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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.