Home / 1,649.08-2,275.74-985.96

Finding the Fourth Proportional to 1,649.08, 2,275.74 and 985.96

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Solution

The fourth proportional to 1,649.08, 2,275.74 and 985.96 is: 1,360.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,649.08 : 2,275.74 = 985.96 : x
  2. Step 2: Convert to fraction form
    1,649.08/2,275.74 = 985.96/x
  3. Step 3: Cross multiply
    1,649.08x = 2,275.74 × 985.96
  4. Step 4: Simplify right side
    1,649.08x = 2,243,788.61
  5. Step 5: Solve for x
    x = 2,243,788.61/1,649.08
  6. Step 6: Final answer
    x = 1,360.63

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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.