Home / 4,985.68-7,479.82-1,865.93

Finding the Fourth Proportional to 4,985.68, 7,479.82 and 1,865.93

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Solution

The fourth proportional to 4,985.68, 7,479.82 and 1,865.93 is: 2,799.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.68 : 7,479.82 = 1,865.93 : x
  2. Step 2: Convert to fraction form
    4,985.68/7,479.82 = 1,865.93/x
  3. Step 3: Cross multiply
    4,985.68x = 7,479.82 × 1,865.93
  4. Step 4: Simplify right side
    4,985.68x = 13,956,774.97
  5. Step 5: Solve for x
    x = 13,956,774.97/4,985.68
  6. Step 6: Final answer
    x = 2,799.37

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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.