Home / 5,178.17-7,144.63-3,053.79

Finding the Fourth Proportional to 5,178.17, 7,144.63 and 3,053.79

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Solution

The fourth proportional to 5,178.17, 7,144.63 and 3,053.79 is: 4,213.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.17 : 7,144.63 = 3,053.79 : x
  2. Step 2: Convert to fraction form
    5,178.17/7,144.63 = 3,053.79/x
  3. Step 3: Cross multiply
    5,178.17x = 7,144.63 × 3,053.79
  4. Step 4: Simplify right side
    5,178.17x = 21,818,199.65
  5. Step 5: Solve for x
    x = 21,818,199.65/5,178.17
  6. Step 6: Final answer
    x = 4,213.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.