Home / 2,910.75-4,366.30-802.70

Finding the Fourth Proportional to 2,910.75, 4,366.30 and 802.70

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Solution

The fourth proportional to 2,910.75, 4,366.30 and 802.70 is: 1,204.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.75 : 4,366.30 = 802.70 : x
  2. Step 2: Convert to fraction form
    2,910.75/4,366.30 = 802.70/x
  3. Step 3: Cross multiply
    2,910.75x = 4,366.30 × 802.70
  4. Step 4: Simplify right side
    2,910.75x = 3,504,829.01
  5. Step 5: Solve for x
    x = 3,504,829.01/2,910.75
  6. Step 6: Final answer
    x = 1,204.10

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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.