Home / 4,906.20-6,770.40-2,810.28

Finding the Fourth Proportional to 4,906.20, 6,770.40 and 2,810.28

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Solution

The fourth proportional to 4,906.20, 6,770.40 and 2,810.28 is: 3,878.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,906.20 : 6,770.40 = 2,810.28 : x
  2. Step 2: Convert to fraction form
    4,906.20/6,770.40 = 2,810.28/x
  3. Step 3: Cross multiply
    4,906.20x = 6,770.40 × 2,810.28
  4. Step 4: Simplify right side
    4,906.20x = 19,026,719.71
  5. Step 5: Solve for x
    x = 19,026,719.71/4,906.20
  6. Step 6: Final answer
    x = 3,878.10

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1.5x scale

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.