Home / 3,651.90-5,478.75-1,055.04

Finding the Fourth Proportional to 3,651.90, 5,478.75 and 1,055.04

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Solution

The fourth proportional to 3,651.90, 5,478.75 and 1,055.04 is: 1,582.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.90 : 5,478.75 = 1,055.04 : x
  2. Step 2: Convert to fraction form
    3,651.90/5,478.75 = 1,055.04/x
  3. Step 3: Cross multiply
    3,651.90x = 5,478.75 × 1,055.04
  4. Step 4: Simplify right side
    3,651.90x = 5,780,300.40
  5. Step 5: Solve for x
    x = 5,780,300.40/3,651.90
  6. Step 6: Final answer
    x = 1,582.82

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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.