Home / 5,218.42-7,827.28-2,445.72

Finding the Fourth Proportional to 5,218.42, 7,827.28 and 2,445.72

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Solution

The fourth proportional to 5,218.42, 7,827.28 and 2,445.72 is: 3,668.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.42 : 7,827.28 = 2,445.72 : x
  2. Step 2: Convert to fraction form
    5,218.42/7,827.28 = 2,445.72/x
  3. Step 3: Cross multiply
    5,218.42x = 7,827.28 × 2,445.72
  4. Step 4: Simplify right side
    5,218.42x = 19,143,335.24
  5. Step 5: Solve for x
    x = 19,143,335.24/5,218.42
  6. Step 6: Final answer
    x = 3,668.42

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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.