Home / 4,034.80-5,569.12-2,840.05

Finding the Fourth Proportional to 4,034.80, 5,569.12 and 2,840.05

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Solution

The fourth proportional to 4,034.80, 5,569.12 and 2,840.05 is: 3,920.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,034.80 : 5,569.12 = 2,840.05 : x
  2. Step 2: Convert to fraction form
    4,034.80/5,569.12 = 2,840.05/x
  3. Step 3: Cross multiply
    4,034.80x = 5,569.12 × 2,840.05
  4. Step 4: Simplify right side
    4,034.80x = 15,816,579.26
  5. Step 5: Solve for x
    x = 15,816,579.26/4,034.80
  6. Step 6: Final answer
    x = 3,920.04

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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.