Home / 5,551.18-7,661.64-3,313.24

Finding the Fourth Proportional to 5,551.18, 7,661.64 and 3,313.24

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Solution

The fourth proportional to 5,551.18, 7,661.64 and 3,313.24 is: 4,572.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,551.18 : 7,661.64 = 3,313.24 : x
  2. Step 2: Convert to fraction form
    5,551.18/7,661.64 = 3,313.24/x
  3. Step 3: Cross multiply
    5,551.18x = 7,661.64 × 3,313.24
  4. Step 4: Simplify right side
    5,551.18x = 25,384,852.11
  5. Step 5: Solve for x
    x = 25,384,852.11/5,551.18
  6. Step 6: Final answer
    x = 4,572.87

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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.