Home / 2,802.90-4,218.60-2,113.05

Finding the Fourth Proportional to 2,802.90, 4,218.60 and 2,113.05

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Solution

The fourth proportional to 2,802.90, 4,218.60 and 2,113.05 is: 3,180.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.90 : 4,218.60 = 2,113.05 : x
  2. Step 2: Convert to fraction form
    2,802.90/4,218.60 = 2,113.05/x
  3. Step 3: Cross multiply
    2,802.90x = 4,218.60 × 2,113.05
  4. Step 4: Simplify right side
    2,802.90x = 8,914,112.73
  5. Step 5: Solve for x
    x = 8,914,112.73/2,802.90
  6. Step 6: Final answer
    x = 3,180.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.