Home / 1,479.66-2,039.88-1,059.28

Finding the Fourth Proportional to 1,479.66, 2,039.88 and 1,059.28

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Solution

The fourth proportional to 1,479.66, 2,039.88 and 1,059.28 is: 1,460.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479.66 : 2,039.88 = 1,059.28 : x
  2. Step 2: Convert to fraction form
    1,479.66/2,039.88 = 1,059.28/x
  3. Step 3: Cross multiply
    1,479.66x = 2,039.88 × 1,059.28
  4. Step 4: Simplify right side
    1,479.66x = 2,160,804.09
  5. Step 5: Solve for x
    x = 2,160,804.09/1,479.66
  6. Step 6: Final answer
    x = 1,460.34

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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.