Home / 1,478.07-2,039.82-888.66

Finding the Fourth Proportional to 1,478.07, 2,039.82 and 888.66

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Solution

The fourth proportional to 1,478.07, 2,039.82 and 888.66 is: 1,226.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478.07 : 2,039.82 = 888.66 : x
  2. Step 2: Convert to fraction form
    1,478.07/2,039.82 = 888.66/x
  3. Step 3: Cross multiply
    1,478.07x = 2,039.82 × 888.66
  4. Step 4: Simplify right side
    1,478.07x = 1,812,706.44
  5. Step 5: Solve for x
    x = 1,812,706.44/1,478.07
  6. Step 6: Final answer
    x = 1,226.40

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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.