Home / 5,585.72-7,705.98-3,698.19

Finding the Fourth Proportional to 5,585.72, 7,705.98 and 3,698.19

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Solution

The fourth proportional to 5,585.72, 7,705.98 and 3,698.19 is: 5,101.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,585.72 : 7,705.98 = 3,698.19 : x
  2. Step 2: Convert to fraction form
    5,585.72/7,705.98 = 3,698.19/x
  3. Step 3: Cross multiply
    5,585.72x = 7,705.98 × 3,698.19
  4. Step 4: Simplify right side
    5,585.72x = 28,498,178.18
  5. Step 5: Solve for x
    x = 28,498,178.18/5,585.72
  6. Step 6: Final answer
    x = 5,101.97

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Half scale
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Double scale
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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.