Home / 5,479.08-8,218.44-1,583.40

Finding the Fourth Proportional to 5,479.08, 8,218.44 and 1,583.40

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Solution

The fourth proportional to 5,479.08, 8,218.44 and 1,583.40 is: 2,375.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.08 : 8,218.44 = 1,583.40 : x
  2. Step 2: Convert to fraction form
    5,479.08/8,218.44 = 1,583.40/x
  3. Step 3: Cross multiply
    5,479.08x = 8,218.44 × 1,583.40
  4. Step 4: Simplify right side
    5,479.08x = 13,013,077.90
  5. Step 5: Solve for x
    x = 13,013,077.90/5,479.08
  6. Step 6: Final answer
    x = 2,375.05

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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.