Home / 4,078.32-5,626.02-2,820.60

Finding the Fourth Proportional to 4,078.32, 5,626.02 and 2,820.60

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Solution

The fourth proportional to 4,078.32, 5,626.02 and 2,820.60 is: 3,891.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.32 : 5,626.02 = 2,820.60 : x
  2. Step 2: Convert to fraction form
    4,078.32/5,626.02 = 2,820.60/x
  3. Step 3: Cross multiply
    4,078.32x = 5,626.02 × 2,820.60
  4. Step 4: Simplify right side
    4,078.32x = 15,868,752.01
  5. Step 5: Solve for x
    x = 15,868,752.01/4,078.32
  6. Step 6: Final answer
    x = 3,891.00

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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.