Home / 2,240.15-3,091.61-1,295.64

Finding the Fourth Proportional to 2,240.15, 3,091.61 and 1,295.64

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Solution

The fourth proportional to 2,240.15, 3,091.61 and 1,295.64 is: 1,788.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.15 : 3,091.61 = 1,295.64 : x
  2. Step 2: Convert to fraction form
    2,240.15/3,091.61 = 1,295.64/x
  3. Step 3: Cross multiply
    2,240.15x = 3,091.61 × 1,295.64
  4. Step 4: Simplify right side
    2,240.15x = 4,005,616.82
  5. Step 5: Solve for x
    x = 4,005,616.82/2,240.15
  6. Step 6: Final answer
    x = 1,788.11

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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.