Home / 3,478.12-4,799.14-2,080.36

Finding the Fourth Proportional to 3,478.12, 4,799.14 and 2,080.36

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Solution

The fourth proportional to 3,478.12, 4,799.14 and 2,080.36 is: 2,870.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.12 : 4,799.14 = 2,080.36 : x
  2. Step 2: Convert to fraction form
    3,478.12/4,799.14 = 2,080.36/x
  3. Step 3: Cross multiply
    3,478.12x = 4,799.14 × 2,080.36
  4. Step 4: Simplify right side
    3,478.12x = 9,983,938.89
  5. Step 5: Solve for x
    x = 9,983,938.89/3,478.12
  6. Step 6: Final answer
    x = 2,870.50

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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.