Home / 3,810.74-5,715.95-1,178.13

Finding the Fourth Proportional to 3,810.74, 5,715.95 and 1,178.13

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Solution

The fourth proportional to 3,810.74, 5,715.95 and 1,178.13 is: 1,767.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,810.74 : 5,715.95 = 1,178.13 : x
  2. Step 2: Convert to fraction form
    3,810.74/5,715.95 = 1,178.13/x
  3. Step 3: Cross multiply
    3,810.74x = 5,715.95 × 1,178.13
  4. Step 4: Simplify right side
    3,810.74x = 6,734,126.28
  5. Step 5: Solve for x
    x = 6,734,126.28/3,810.74
  6. Step 6: Final answer
    x = 1,767.15

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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.