Home / 3,020.04-4,170.90-2,078.28

Finding the Fourth Proportional to 3,020.04, 4,170.90 and 2,078.28

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Solution

The fourth proportional to 3,020.04, 4,170.90 and 2,078.28 is: 2,870.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.04 : 4,170.90 = 2,078.28 : x
  2. Step 2: Convert to fraction form
    3,020.04/4,170.90 = 2,078.28/x
  3. Step 3: Cross multiply
    3,020.04x = 4,170.90 × 2,078.28
  4. Step 4: Simplify right side
    3,020.04x = 8,668,298.05
  5. Step 5: Solve for x
    x = 8,668,298.05/3,020.04
  6. Step 6: Final answer
    x = 2,870.26

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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.