Home / 6,913.72-10,368.90-1,982.20

Finding the Fourth Proportional to 6,913.72, 10,368.90 and 1,982.20

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Solution

The fourth proportional to 6,913.72, 10,368.90 and 1,982.20 is: 2,972.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,913.72 : 10,368.90 = 1,982.20 : x
  2. Step 2: Convert to fraction form
    6,913.72/10,368.90 = 1,982.20/x
  3. Step 3: Cross multiply
    6,913.72x = 10,368.90 × 1,982.20
  4. Step 4: Simplify right side
    6,913.72x = 20,553,233.58
  5. Step 5: Solve for x
    x = 20,553,233.58/6,913.72
  6. Step 6: Final answer
    x = 2,972.82

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1.5x scale

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.