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Finding the Fourth Proportional to 4,679.51, 7,013.79 and 1,904.45

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Solution

The fourth proportional to 4,679.51, 7,013.79 and 1,904.45 is: 2,854.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,679.51 : 7,013.79 = 1,904.45 : x
  2. Step 2: Convert to fraction form
    4,679.51/7,013.79 = 1,904.45/x
  3. Step 3: Cross multiply
    4,679.51x = 7,013.79 × 1,904.45
  4. Step 4: Simplify right side
    4,679.51x = 13,357,377.30
  5. Step 5: Solve for x
    x = 13,357,377.30/4,679.51
  6. Step 6: Final answer
    x = 2,854.44

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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.