Home / 5,215.08-7,817.72-1,749.90

Finding the Fourth Proportional to 5,215.08, 7,817.72 and 1,749.90

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Solution

The fourth proportional to 5,215.08, 7,817.72 and 1,749.90 is: 2,623.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215.08 : 7,817.72 = 1,749.90 : x
  2. Step 2: Convert to fraction form
    5,215.08/7,817.72 = 1,749.90/x
  3. Step 3: Cross multiply
    5,215.08x = 7,817.72 × 1,749.90
  4. Step 4: Simplify right side
    5,215.08x = 13,680,228.23
  5. Step 5: Solve for x
    x = 13,680,228.23/5,215.08
  6. Step 6: Final answer
    x = 2,623.21

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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.