Home / 1,479.51-2,040.87-1,080.66

Finding the Fourth Proportional to 1,479.51, 2,040.87 and 1,080.66

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Solution

The fourth proportional to 1,479.51, 2,040.87 and 1,080.66 is: 1,490.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479.51 : 2,040.87 = 1,080.66 : x
  2. Step 2: Convert to fraction form
    1,479.51/2,040.87 = 1,080.66/x
  3. Step 3: Cross multiply
    1,479.51x = 2,040.87 × 1,080.66
  4. Step 4: Simplify right side
    1,479.51x = 2,205,486.57
  5. Step 5: Solve for x
    x = 2,205,486.57/1,479.51
  6. Step 6: Final answer
    x = 1,490.69

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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.