Home / 5,585.76-8,379.36-2,985.12

Finding the Fourth Proportional to 5,585.76, 8,379.36 and 2,985.12

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Solution

The fourth proportional to 5,585.76, 8,379.36 and 2,985.12 is: 4,478.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,585.76 : 8,379.36 = 2,985.12 : x
  2. Step 2: Convert to fraction form
    5,585.76/8,379.36 = 2,985.12/x
  3. Step 3: Cross multiply
    5,585.76x = 8,379.36 × 2,985.12
  4. Step 4: Simplify right side
    5,585.76x = 25,013,395.12
  5. Step 5: Solve for x
    x = 25,013,395.12/5,585.76
  6. Step 6: Final answer
    x = 4,478.06

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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.