Home / 2,917.12-4,025-1,738.58

Finding the Fourth Proportional to 2,917.12, 4,025 and 1,738.58

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Solution

The fourth proportional to 2,917.12, 4,025 and 1,738.58 is: 2,398.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.12 : 4,025 = 1,738.58 : x
  2. Step 2: Convert to fraction form
    2,917.12/4,025 = 1,738.58/x
  3. Step 3: Cross multiply
    2,917.12x = 4,025 × 1,738.58
  4. Step 4: Simplify right side
    2,917.12x = 6,997,784.50
  5. Step 5: Solve for x
    x = 6,997,784.50/2,917.12
  6. Step 6: Final answer
    x = 2,398.87

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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.