Home / 2,649.12-3,655.84-1,470.32

Finding the Fourth Proportional to 2,649.12, 3,655.84 and 1,470.32

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Solution

The fourth proportional to 2,649.12, 3,655.84 and 1,470.32 is: 2,029.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649.12 : 3,655.84 = 1,470.32 : x
  2. Step 2: Convert to fraction form
    2,649.12/3,655.84 = 1,470.32/x
  3. Step 3: Cross multiply
    2,649.12x = 3,655.84 × 1,470.32
  4. Step 4: Simplify right side
    2,649.12x = 5,375,254.67
  5. Step 5: Solve for x
    x = 5,375,254.67/2,649.12
  6. Step 6: Final answer
    x = 2,029.07

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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.