Home / 3,848.55-5,311.02-2,080.15

Finding the Fourth Proportional to 3,848.55, 5,311.02 and 2,080.15

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Solution

The fourth proportional to 3,848.55, 5,311.02 and 2,080.15 is: 2,870.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,848.55 : 5,311.02 = 2,080.15 : x
  2. Step 2: Convert to fraction form
    3,848.55/5,311.02 = 2,080.15/x
  3. Step 3: Cross multiply
    3,848.55x = 5,311.02 × 2,080.15
  4. Step 4: Simplify right side
    3,848.55x = 11,047,701.08
  5. Step 5: Solve for x
    x = 11,047,701.08/3,848.55
  6. Step 6: Final answer
    x = 2,870.62

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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.