Home / 3,521.54-5,280.76-1,055.90

Finding the Fourth Proportional to 3,521.54, 5,280.76 and 1,055.90

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Solution

The fourth proportional to 3,521.54, 5,280.76 and 1,055.90 is: 1,583.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.54 : 5,280.76 = 1,055.90 : x
  2. Step 2: Convert to fraction form
    3,521.54/5,280.76 = 1,055.90/x
  3. Step 3: Cross multiply
    3,521.54x = 5,280.76 × 1,055.90
  4. Step 4: Simplify right side
    3,521.54x = 5,575,965.05
  5. Step 5: Solve for x
    x = 5,575,965.05/3,521.54
  6. Step 6: Final answer
    x = 1,583.39

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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.