Home / 2,919.04-4,021.92-2,445.28

Finding the Fourth Proportional to 2,919.04, 4,021.92 and 2,445.28

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Solution

The fourth proportional to 2,919.04, 4,021.92 and 2,445.28 is: 3,369.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.04 : 4,021.92 = 2,445.28 : x
  2. Step 2: Convert to fraction form
    2,919.04/4,021.92 = 2,445.28/x
  3. Step 3: Cross multiply
    2,919.04x = 4,021.92 × 2,445.28
  4. Step 4: Simplify right side
    2,919.04x = 9,834,720.54
  5. Step 5: Solve for x
    x = 9,834,720.54/2,919.04
  6. Step 6: Final answer
    x = 3,369.16

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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.