Home / 5,478.11-8,218.53-1,582.52

Finding the Fourth Proportional to 5,478.11, 8,218.53 and 1,582.52

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Solution

The fourth proportional to 5,478.11, 8,218.53 and 1,582.52 is: 2,374.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.11 : 8,218.53 = 1,582.52 : x
  2. Step 2: Convert to fraction form
    5,478.11/8,218.53 = 1,582.52/x
  3. Step 3: Cross multiply
    5,478.11x = 8,218.53 × 1,582.52
  4. Step 4: Simplify right side
    5,478.11x = 13,005,939.09
  5. Step 5: Solve for x
    x = 13,005,939.09/5,478.11
  6. Step 6: Final answer
    x = 2,374.17

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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.