Home / 2,478.39-3,714.81-1,177.13

Finding the Fourth Proportional to 2,478.39, 3,714.81 and 1,177.13

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Solution

The fourth proportional to 2,478.39, 3,714.81 and 1,177.13 is: 1,764.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478.39 : 3,714.81 = 1,177.13 : x
  2. Step 2: Convert to fraction form
    2,478.39/3,714.81 = 1,177.13/x
  3. Step 3: Cross multiply
    2,478.39x = 3,714.81 × 1,177.13
  4. Step 4: Simplify right side
    2,478.39x = 4,372,795.72
  5. Step 5: Solve for x
    x = 4,372,795.72/2,478.39
  6. Step 6: Final answer
    x = 1,764.37

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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.