Home / 2,240.08-3,091.26-1,295.80

Finding the Fourth Proportional to 2,240.08, 3,091.26 and 1,295.80

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Solution

The fourth proportional to 2,240.08, 3,091.26 and 1,295.80 is: 1,788.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.08 : 3,091.26 = 1,295.80 : x
  2. Step 2: Convert to fraction form
    2,240.08/3,091.26 = 1,295.80/x
  3. Step 3: Cross multiply
    2,240.08x = 3,091.26 × 1,295.80
  4. Step 4: Simplify right side
    2,240.08x = 4,005,654.71
  5. Step 5: Solve for x
    x = 4,005,654.71/2,240.08
  6. Step 6: Final answer
    x = 1,788.17

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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.