Home / 3,613.93-5,420.28-1,423.29

Finding the Fourth Proportional to 3,613.93, 5,420.28 and 1,423.29

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Solution

The fourth proportional to 3,613.93, 5,420.28 and 1,423.29 is: 2,134.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.93 : 5,420.28 = 1,423.29 : x
  2. Step 2: Convert to fraction form
    3,613.93/5,420.28 = 1,423.29/x
  3. Step 3: Cross multiply
    3,613.93x = 5,420.28 × 1,423.29
  4. Step 4: Simplify right side
    3,613.93x = 7,714,630.32
  5. Step 5: Solve for x
    x = 7,714,630.32/3,613.93
  6. Step 6: Final answer
    x = 2,134.69

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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.