Home / 2,877.48-3,971.18-1,618.83

Finding the Fourth Proportional to 2,877.48, 3,971.18 and 1,618.83

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Solution

The fourth proportional to 2,877.48, 3,971.18 and 1,618.83 is: 2,234.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877.48 : 3,971.18 = 1,618.83 : x
  2. Step 2: Convert to fraction form
    2,877.48/3,971.18 = 1,618.83/x
  3. Step 3: Cross multiply
    2,877.48x = 3,971.18 × 1,618.83
  4. Step 4: Simplify right side
    2,877.48x = 6,428,657.23
  5. Step 5: Solve for x
    x = 6,428,657.23/2,877.48
  6. Step 6: Final answer
    x = 2,234.13

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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.