Home / 4,119.29-6,178.95-1,345.91

Finding the Fourth Proportional to 4,119.29, 6,178.95 and 1,345.91

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Solution

The fourth proportional to 4,119.29, 6,178.95 and 1,345.91 is: 2,018.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,119.29 : 6,178.95 = 1,345.91 : x
  2. Step 2: Convert to fraction form
    4,119.29/6,178.95 = 1,345.91/x
  3. Step 3: Cross multiply
    4,119.29x = 6,178.95 × 1,345.91
  4. Step 4: Simplify right side
    4,119.29x = 8,316,279.70
  5. Step 5: Solve for x
    x = 8,316,279.70/4,119.29
  6. Step 6: Final answer
    x = 2,018.86

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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.