Home / 2,910.80-4,366.92-1,370

Finding the Fourth Proportional to 2,910.80, 4,366.92 and 1,370

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Solution

The fourth proportional to 2,910.80, 4,366.92 and 1,370 is: 2,055.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.80 : 4,366.92 = 1,370 : x
  2. Step 2: Convert to fraction form
    2,910.80/4,366.92 = 1,370/x
  3. Step 3: Cross multiply
    2,910.80x = 4,366.92 × 1,370
  4. Step 4: Simplify right side
    2,910.80x = 5,982,680.40
  5. Step 5: Solve for x
    x = 5,982,680.40/2,910.80
  6. Step 6: Final answer
    x = 2,055.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.