Home / 3,114.36-4,295.70-2,645.40

Finding the Fourth Proportional to 3,114.36, 4,295.70 and 2,645.40

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Solution

The fourth proportional to 3,114.36, 4,295.70 and 2,645.40 is: 3,648.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.36 : 4,295.70 = 2,645.40 : x
  2. Step 2: Convert to fraction form
    3,114.36/4,295.70 = 2,645.40/x
  3. Step 3: Cross multiply
    3,114.36x = 4,295.70 × 2,645.40
  4. Step 4: Simplify right side
    3,114.36x = 11,363,844.78
  5. Step 5: Solve for x
    x = 11,363,844.78/3,114.36
  6. Step 6: Final answer
    x = 3,648.85

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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.