Home / 5,585.62-8,378.48-1,690.18

Finding the Fourth Proportional to 5,585.62, 8,378.48 and 1,690.18

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Solution

The fourth proportional to 5,585.62, 8,378.48 and 1,690.18 is: 2,535.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,585.62 : 8,378.48 = 1,690.18 : x
  2. Step 2: Convert to fraction form
    5,585.62/8,378.48 = 1,690.18/x
  3. Step 3: Cross multiply
    5,585.62x = 8,378.48 × 1,690.18
  4. Step 4: Simplify right side
    5,585.62x = 14,161,139.33
  5. Step 5: Solve for x
    x = 14,161,139.33/5,585.62
  6. Step 6: Final answer
    x = 2,535.29

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.