Home / 5,480.81-7,563.69-3,123.11

Finding the Fourth Proportional to 5,480.81, 7,563.69 and 3,123.11

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Solution

The fourth proportional to 5,480.81, 7,563.69 and 3,123.11 is: 4,309.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,480.81 : 7,563.69 = 3,123.11 : x
  2. Step 2: Convert to fraction form
    5,480.81/7,563.69 = 3,123.11/x
  3. Step 3: Cross multiply
    5,480.81x = 7,563.69 × 3,123.11
  4. Step 4: Simplify right side
    5,480.81x = 23,622,209.77
  5. Step 5: Solve for x
    x = 23,622,209.77/5,480.81
  6. Step 6: Final answer
    x = 4,309.98

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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.