Home / 2,785.61-4,178.42-1,142.93

Finding the Fourth Proportional to 2,785.61, 4,178.42 and 1,142.93

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Solution

The fourth proportional to 2,785.61, 4,178.42 and 1,142.93 is: 1,714.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.61 : 4,178.42 = 1,142.93 : x
  2. Step 2: Convert to fraction form
    2,785.61/4,178.42 = 1,142.93/x
  3. Step 3: Cross multiply
    2,785.61x = 4,178.42 × 1,142.93
  4. Step 4: Simplify right side
    2,785.61x = 4,775,614.96
  5. Step 5: Solve for x
    x = 4,775,614.96/2,785.61
  6. Step 6: Final answer
    x = 1,714.39

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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.