Home / 5,585.96-8,380.32-1,690.16

Finding the Fourth Proportional to 5,585.96, 8,380.32 and 1,690.16

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Solution

The fourth proportional to 5,585.96, 8,380.32 and 1,690.16 is: 2,535.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,585.96 : 8,380.32 = 1,690.16 : x
  2. Step 2: Convert to fraction form
    5,585.96/8,380.32 = 1,690.16/x
  3. Step 3: Cross multiply
    5,585.96x = 8,380.32 × 1,690.16
  4. Step 4: Simplify right side
    5,585.96x = 14,164,081.65
  5. Step 5: Solve for x
    x = 14,164,081.65/5,585.96
  6. Step 6: Final answer
    x = 2,535.66

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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.