Home / 1,479.60-2,217.28-1,086.51

Finding the Fourth Proportional to 1,479.60, 2,217.28 and 1,086.51

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Solution

The fourth proportional to 1,479.60, 2,217.28 and 1,086.51 is: 1,628.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479.60 : 2,217.28 = 1,086.51 : x
  2. Step 2: Convert to fraction form
    1,479.60/2,217.28 = 1,086.51/x
  3. Step 3: Cross multiply
    1,479.60x = 2,217.28 × 1,086.51
  4. Step 4: Simplify right side
    1,479.60x = 2,409,106.06
  5. Step 5: Solve for x
    x = 2,409,106.06/1,479.60
  6. Step 6: Final answer
    x = 1,628.22

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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.