Home / 2,649.74-3,975.06-1,089.34

Finding the Fourth Proportional to 2,649.74, 3,975.06 and 1,089.34

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Solution

The fourth proportional to 2,649.74, 3,975.06 and 1,089.34 is: 1,634.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649.74 : 3,975.06 = 1,089.34 : x
  2. Step 2: Convert to fraction form
    2,649.74/3,975.06 = 1,089.34/x
  3. Step 3: Cross multiply
    2,649.74x = 3,975.06 × 1,089.34
  4. Step 4: Simplify right side
    2,649.74x = 4,330,191.86
  5. Step 5: Solve for x
    x = 4,330,191.86/2,649.74
  6. Step 6: Final answer
    x = 1,634.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.