Home / 5,775.66-8,655.12-3,140.93

Finding the Fourth Proportional to 5,775.66, 8,655.12 and 3,140.93

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Solution

The fourth proportional to 5,775.66, 8,655.12 and 3,140.93 is: 4,706.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,775.66 : 8,655.12 = 3,140.93 : x
  2. Step 2: Convert to fraction form
    5,775.66/8,655.12 = 3,140.93/x
  3. Step 3: Cross multiply
    5,775.66x = 8,655.12 × 3,140.93
  4. Step 4: Simplify right side
    5,775.66x = 27,185,147.70
  5. Step 5: Solve for x
    x = 27,185,147.70/5,775.66
  6. Step 6: Final answer
    x = 4,706.85

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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.