Home / 2,917.20-4,374.36-968.72

Finding the Fourth Proportional to 2,917.20, 4,374.36 and 968.72

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Solution

The fourth proportional to 2,917.20, 4,374.36 and 968.72 is: 1,452.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.20 : 4,374.36 = 968.72 : x
  2. Step 2: Convert to fraction form
    2,917.20/4,374.36 = 968.72/x
  3. Step 3: Cross multiply
    2,917.20x = 4,374.36 × 968.72
  4. Step 4: Simplify right side
    2,917.20x = 4,237,530.02
  5. Step 5: Solve for x
    x = 4,237,530.02/2,917.20
  6. Step 6: Final answer
    x = 1,452.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.