Home / 3,143.02-4,335.48-2,080.80

Finding the Fourth Proportional to 3,143.02, 4,335.48 and 2,080.80

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Solution

The fourth proportional to 3,143.02, 4,335.48 and 2,080.80 is: 2,870.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.02 : 4,335.48 = 2,080.80 : x
  2. Step 2: Convert to fraction form
    3,143.02/4,335.48 = 2,080.80/x
  3. Step 3: Cross multiply
    3,143.02x = 4,335.48 × 2,080.80
  4. Step 4: Simplify right side
    3,143.02x = 9,021,266.78
  5. Step 5: Solve for x
    x = 9,021,266.78/3,143.02
  6. Step 6: Final answer
    x = 2,870.25

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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.