Home / 7,701.84-11,551.87-2,155.62

Finding the Fourth Proportional to 7,701.84, 11,551.87 and 2,155.62

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Solution

The fourth proportional to 7,701.84, 11,551.87 and 2,155.62 is: 3,233.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,701.84 : 11,551.87 = 2,155.62 : x
  2. Step 2: Convert to fraction form
    7,701.84/11,551.87 = 2,155.62/x
  3. Step 3: Cross multiply
    7,701.84x = 11,551.87 × 2,155.62
  4. Step 4: Simplify right side
    7,701.84x = 24,901,488.02
  5. Step 5: Solve for x
    x = 24,901,488.02/7,701.84
  6. Step 6: Final answer
    x = 3,233.19

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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.