Home / 2,240.48-3,091.07-1,308.98

Finding the Fourth Proportional to 2,240.48, 3,091.07 and 1,308.98

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Solution

The fourth proportional to 2,240.48, 3,091.07 and 1,308.98 is: 1,805.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.48 : 3,091.07 = 1,308.98 : x
  2. Step 2: Convert to fraction form
    2,240.48/3,091.07 = 1,308.98/x
  3. Step 3: Cross multiply
    2,240.48x = 3,091.07 × 1,308.98
  4. Step 4: Simplify right side
    2,240.48x = 4,046,126.81
  5. Step 5: Solve for x
    x = 4,046,126.81/2,240.48
  6. Step 6: Final answer
    x = 1,805.92

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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.