Home / 5,154.51-7,731.63-1,456.65

Finding the Fourth Proportional to 5,154.51, 7,731.63 and 1,456.65

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Solution

The fourth proportional to 5,154.51, 7,731.63 and 1,456.65 is: 2,184.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.51 : 7,731.63 = 1,456.65 : x
  2. Step 2: Convert to fraction form
    5,154.51/7,731.63 = 1,456.65/x
  3. Step 3: Cross multiply
    5,154.51x = 7,731.63 × 1,456.65
  4. Step 4: Simplify right side
    5,154.51x = 11,262,278.84
  5. Step 5: Solve for x
    x = 11,262,278.84/5,154.51
  6. Step 6: Final answer
    x = 2,184.94

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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.