Home / 7,774.31-10,728.55-4,237.55

Finding the Fourth Proportional to 7,774.31, 10,728.55 and 4,237.55

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Solution

The fourth proportional to 7,774.31, 10,728.55 and 4,237.55 is: 5,847.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,774.31 : 10,728.55 = 4,237.55 : x
  2. Step 2: Convert to fraction form
    7,774.31/10,728.55 = 4,237.55/x
  3. Step 3: Cross multiply
    7,774.31x = 10,728.55 × 4,237.55
  4. Step 4: Simplify right side
    7,774.31x = 45,462,758.94
  5. Step 5: Solve for x
    x = 45,462,758.94/7,774.31
  6. Step 6: Final answer
    x = 5,847.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.