Home / 6,511.89-9,767.72-1,581.49

Finding the Fourth Proportional to 6,511.89, 9,767.72 and 1,581.49

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Solution

The fourth proportional to 6,511.89, 9,767.72 and 1,581.49 is: 2,372.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,511.89 : 9,767.72 = 1,581.49 : x
  2. Step 2: Convert to fraction form
    6,511.89/9,767.72 = 1,581.49/x
  3. Step 3: Cross multiply
    6,511.89x = 9,767.72 × 1,581.49
  4. Step 4: Simplify right side
    6,511.89x = 15,447,567.67
  5. Step 5: Solve for x
    x = 15,447,567.67/6,511.89
  6. Step 6: Final answer
    x = 2,372.21

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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.