Home / 1,749.25-2,409.08-1,451.78

Finding the Fourth Proportional to 1,749.25, 2,409.08 and 1,451.78

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Solution

The fourth proportional to 1,749.25, 2,409.08 and 1,451.78 is: 1,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,749.25 : 2,409.08 = 1,451.78 : x
  2. Step 2: Convert to fraction form
    1,749.25/2,409.08 = 1,451.78/x
  3. Step 3: Cross multiply
    1,749.25x = 2,409.08 × 1,451.78
  4. Step 4: Simplify right side
    1,749.25x = 3,497,454.16
  5. Step 5: Solve for x
    x = 3,497,454.16/1,749.25
  6. Step 6: Final answer
    x = 1,999.40

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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.