Home / 5,278.83-7,282.35-3,389.91

Finding the Fourth Proportional to 5,278.83, 7,282.35 and 3,389.91

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Solution

The fourth proportional to 5,278.83, 7,282.35 and 3,389.91 is: 4,676.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.83 : 7,282.35 = 3,389.91 : x
  2. Step 2: Convert to fraction form
    5,278.83/7,282.35 = 3,389.91/x
  3. Step 3: Cross multiply
    5,278.83x = 7,282.35 × 3,389.91
  4. Step 4: Simplify right side
    5,278.83x = 24,686,511.09
  5. Step 5: Solve for x
    x = 24,686,511.09/5,278.83
  6. Step 6: Final answer
    x = 4,676.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.