Home / 6,655.66-9,981.78-1,974.58

Finding the Fourth Proportional to 6,655.66, 9,981.78 and 1,974.58

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Solution

The fourth proportional to 6,655.66, 9,981.78 and 1,974.58 is: 2,961.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,655.66 : 9,981.78 = 1,974.58 : x
  2. Step 2: Convert to fraction form
    6,655.66/9,981.78 = 1,974.58/x
  3. Step 3: Cross multiply
    6,655.66x = 9,981.78 × 1,974.58
  4. Step 4: Simplify right side
    6,655.66x = 19,709,823.15
  5. Step 5: Solve for x
    x = 19,709,823.15/6,655.66
  6. Step 6: Final answer
    x = 2,961.36

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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.