Home / 5,549.78-7,658.75-3,312.93

Finding the Fourth Proportional to 5,549.78, 7,658.75 and 3,312.93

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Solution

The fourth proportional to 5,549.78, 7,658.75 and 3,312.93 is: 4,571.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,549.78 : 7,658.75 = 3,312.93 : x
  2. Step 2: Convert to fraction form
    5,549.78/7,658.75 = 3,312.93/x
  3. Step 3: Cross multiply
    5,549.78x = 7,658.75 × 3,312.93
  4. Step 4: Simplify right side
    5,549.78x = 25,372,939.64
  5. Step 5: Solve for x
    x = 25,372,939.64/5,549.78
  6. Step 6: Final answer
    x = 4,571.88

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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.