Home / 2,810.60-3,876.68-1,926.48

Finding the Fourth Proportional to 2,810.60, 3,876.68 and 1,926.48

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Solution

The fourth proportional to 2,810.60, 3,876.68 and 1,926.48 is: 2,657.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.60 : 3,876.68 = 1,926.48 : x
  2. Step 2: Convert to fraction form
    2,810.60/3,876.68 = 1,926.48/x
  3. Step 3: Cross multiply
    2,810.60x = 3,876.68 × 1,926.48
  4. Step 4: Simplify right side
    2,810.60x = 7,468,346.49
  5. Step 5: Solve for x
    x = 7,468,346.49/2,810.60
  6. Step 6: Final answer
    x = 2,657.21

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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.