Home / 3,146.90-4,721.20-2,802.60

Finding the Fourth Proportional to 3,146.90, 4,721.20 and 2,802.60

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Solution

The fourth proportional to 3,146.90, 4,721.20 and 2,802.60 is: 4,204.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.90 : 4,721.20 = 2,802.60 : x
  2. Step 2: Convert to fraction form
    3,146.90/4,721.20 = 2,802.60/x
  3. Step 3: Cross multiply
    3,146.90x = 4,721.20 × 2,802.60
  4. Step 4: Simplify right side
    3,146.90x = 13,231,657.16
  5. Step 5: Solve for x
    x = 13,231,657.16/3,146.90
  6. Step 6: Final answer
    x = 4,204.66

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1.5x scale

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.