Home / 4,089.08-5,641.32-2,895.80

Finding the Fourth Proportional to 4,089.08, 5,641.32 and 2,895.80

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Solution

The fourth proportional to 4,089.08, 5,641.32 and 2,895.80 is: 3,995.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.08 : 5,641.32 = 2,895.80 : x
  2. Step 2: Convert to fraction form
    4,089.08/5,641.32 = 2,895.80/x
  3. Step 3: Cross multiply
    4,089.08x = 5,641.32 × 2,895.80
  4. Step 4: Simplify right side
    4,089.08x = 16,336,134.46
  5. Step 5: Solve for x
    x = 16,336,134.46/4,089.08
  6. Step 6: Final answer
    x = 3,995.06

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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.