Home / 2,917.78-4,026.47-1,591.49

Finding the Fourth Proportional to 2,917.78, 4,026.47 and 1,591.49

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Solution

The fourth proportional to 2,917.78, 4,026.47 and 1,591.49 is: 2,196.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.78 : 4,026.47 = 1,591.49 : x
  2. Step 2: Convert to fraction form
    2,917.78/4,026.47 = 1,591.49/x
  3. Step 3: Cross multiply
    2,917.78x = 4,026.47 × 1,591.49
  4. Step 4: Simplify right side
    2,917.78x = 6,408,088.85
  5. Step 5: Solve for x
    x = 6,408,088.85/2,917.78
  6. Step 6: Final answer
    x = 2,196.22

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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.