Home / 5,106.98-7,658.48-1,986.57

Finding the Fourth Proportional to 5,106.98, 7,658.48 and 1,986.57

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Solution

The fourth proportional to 5,106.98, 7,658.48 and 1,986.57 is: 2,979.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106.98 : 7,658.48 = 1,986.57 : x
  2. Step 2: Convert to fraction form
    5,106.98/7,658.48 = 1,986.57/x
  3. Step 3: Cross multiply
    5,106.98x = 7,658.48 × 1,986.57
  4. Step 4: Simplify right side
    5,106.98x = 15,214,068.32
  5. Step 5: Solve for x
    x = 15,214,068.32/5,106.98
  6. Step 6: Final answer
    x = 2,979.08

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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.