Home / 2,079.84-2,870.58-1,370.44

Finding the Fourth Proportional to 2,079.84, 2,870.58 and 1,370.44

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Solution

The fourth proportional to 2,079.84, 2,870.58 and 1,370.44 is: 1,891.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.84 : 2,870.58 = 1,370.44 : x
  2. Step 2: Convert to fraction form
    2,079.84/2,870.58 = 1,370.44/x
  3. Step 3: Cross multiply
    2,079.84x = 2,870.58 × 1,370.44
  4. Step 4: Simplify right side
    2,079.84x = 3,933,957.66
  5. Step 5: Solve for x
    x = 3,933,957.66/2,079.84
  6. Step 6: Final answer
    x = 1,891.47

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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.