Home / 2,760.16-4,138.87-1,178.63

Finding the Fourth Proportional to 2,760.16, 4,138.87 and 1,178.63

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Solution

The fourth proportional to 2,760.16, 4,138.87 and 1,178.63 is: 1,767.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.16 : 4,138.87 = 1,178.63 : x
  2. Step 2: Convert to fraction form
    2,760.16/4,138.87 = 1,178.63/x
  3. Step 3: Cross multiply
    2,760.16x = 4,138.87 × 1,178.63
  4. Step 4: Simplify right side
    2,760.16x = 4,878,196.35
  5. Step 5: Solve for x
    x = 4,878,196.35/2,760.16
  6. Step 6: Final answer
    x = 1,767.36

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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.