Home / 6,320.70-9,478.65-2,103.15

Finding the Fourth Proportional to 6,320.70, 9,478.65 and 2,103.15

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Solution

The fourth proportional to 6,320.70, 9,478.65 and 2,103.15 is: 3,153.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,320.70 : 9,478.65 = 2,103.15 : x
  2. Step 2: Convert to fraction form
    6,320.70/9,478.65 = 2,103.15/x
  3. Step 3: Cross multiply
    6,320.70x = 9,478.65 × 2,103.15
  4. Step 4: Simplify right side
    6,320.70x = 19,935,022.75
  5. Step 5: Solve for x
    x = 19,935,022.75/6,320.70
  6. Step 6: Final answer
    x = 3,153.93

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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.