Home / 5,553.18-7,661.68-3,345.18

Finding the Fourth Proportional to 5,553.18, 7,661.68 and 3,345.18

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Solution

The fourth proportional to 5,553.18, 7,661.68 and 3,345.18 is: 4,615.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,553.18 : 7,661.68 = 3,345.18 : x
  2. Step 2: Convert to fraction form
    5,553.18/7,661.68 = 3,345.18/x
  3. Step 3: Cross multiply
    5,553.18x = 7,661.68 × 3,345.18
  4. Step 4: Simplify right side
    5,553.18x = 25,629,698.70
  5. Step 5: Solve for x
    x = 25,629,698.70/5,553.18
  6. Step 6: Final answer
    x = 4,615.32

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Half scale
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Double scale
Find fourth proportional to 5,554.18, 7,663.06 and 3,346.18
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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.