Home / 5,479.57-8,218.21-1,583.06

Finding the Fourth Proportional to 5,479.57, 8,218.21 and 1,583.06

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Solution

The fourth proportional to 5,479.57, 8,218.21 and 1,583.06 is: 2,374.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.57 : 8,218.21 = 1,583.06 : x
  2. Step 2: Convert to fraction form
    5,479.57/8,218.21 = 1,583.06/x
  3. Step 3: Cross multiply
    5,479.57x = 8,218.21 × 1,583.06
  4. Step 4: Simplify right side
    5,479.57x = 13,009,919.52
  5. Step 5: Solve for x
    x = 13,009,919.52/5,479.57
  6. Step 6: Final answer
    x = 2,374.26

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1.5x scale

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.