Home / 7,312.49-10,968.76-1,765.83

Finding the Fourth Proportional to 7,312.49, 10,968.76 and 1,765.83

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Solution

The fourth proportional to 7,312.49, 10,968.76 and 1,765.83 is: 2,648.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,312.49 : 10,968.76 = 1,765.83 : x
  2. Step 2: Convert to fraction form
    7,312.49/10,968.76 = 1,765.83/x
  3. Step 3: Cross multiply
    7,312.49x = 10,968.76 × 1,765.83
  4. Step 4: Simplify right side
    7,312.49x = 19,368,956.64
  5. Step 5: Solve for x
    x = 19,368,956.64/7,312.49
  6. Step 6: Final answer
    x = 2,648.75

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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.