Home / 3,389.12-4,677.36-2,864.96

Finding the Fourth Proportional to 3,389.12, 4,677.36 and 2,864.96

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Solution

The fourth proportional to 3,389.12, 4,677.36 and 2,864.96 is: 3,953.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.12 : 4,677.36 = 2,864.96 : x
  2. Step 2: Convert to fraction form
    3,389.12/4,677.36 = 2,864.96/x
  3. Step 3: Cross multiply
    3,389.12x = 4,677.36 × 2,864.96
  4. Step 4: Simplify right side
    3,389.12x = 13,400,449.31
  5. Step 5: Solve for x
    x = 13,400,449.31/3,389.12
  6. Step 6: Final answer
    x = 3,953.96

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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.