Home / 5,155.60-7,114.98-2,917.36

Finding the Fourth Proportional to 5,155.60, 7,114.98 and 2,917.36

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Solution

The fourth proportional to 5,155.60, 7,114.98 and 2,917.36 is: 4,026.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.60 : 7,114.98 = 2,917.36 : x
  2. Step 2: Convert to fraction form
    5,155.60/7,114.98 = 2,917.36/x
  3. Step 3: Cross multiply
    5,155.60x = 7,114.98 × 2,917.36
  4. Step 4: Simplify right side
    5,155.60x = 20,756,958.05
  5. Step 5: Solve for x
    x = 20,756,958.05/5,155.60
  6. Step 6: Final answer
    x = 4,026.10

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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.