Home / 4,120.04-5,680.68-2,862.16

Finding the Fourth Proportional to 4,120.04, 5,680.68 and 2,862.16

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Solution

The fourth proportional to 4,120.04, 5,680.68 and 2,862.16 is: 3,946.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.04 : 5,680.68 = 2,862.16 : x
  2. Step 2: Convert to fraction form
    4,120.04/5,680.68 = 2,862.16/x
  3. Step 3: Cross multiply
    4,120.04x = 5,680.68 × 2,862.16
  4. Step 4: Simplify right side
    4,120.04x = 16,259,015.07
  5. Step 5: Solve for x
    x = 16,259,015.07/4,120.04
  6. Step 6: Final answer
    x = 3,946.32

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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.