Home / 2,964.38-4,089.60-2,080.76

Finding the Fourth Proportional to 2,964.38, 4,089.60 and 2,080.76

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Solution

The fourth proportional to 2,964.38, 4,089.60 and 2,080.76 is: 2,870.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,964.38 : 4,089.60 = 2,080.76 : x
  2. Step 2: Convert to fraction form
    2,964.38/4,089.60 = 2,080.76/x
  3. Step 3: Cross multiply
    2,964.38x = 4,089.60 × 2,080.76
  4. Step 4: Simplify right side
    2,964.38x = 8,509,486.32
  5. Step 5: Solve for x
    x = 8,509,486.32/2,964.38
  6. Step 6: Final answer
    x = 2,870.58

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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.