Home / 3,521.55-5,280.75-1,055.91

Finding the Fourth Proportional to 3,521.55, 5,280.75 and 1,055.91

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Solution

The fourth proportional to 3,521.55, 5,280.75 and 1,055.91 is: 1,583.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.55 : 5,280.75 = 1,055.91 : x
  2. Step 2: Convert to fraction form
    3,521.55/5,280.75 = 1,055.91/x
  3. Step 3: Cross multiply
    3,521.55x = 5,280.75 × 1,055.91
  4. Step 4: Simplify right side
    3,521.55x = 5,575,996.73
  5. Step 5: Solve for x
    x = 5,575,996.73/3,521.55
  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.