Home / 5,585.62-8,378.82-1,690.32

Finding the Fourth Proportional to 5,585.62, 8,378.82 and 1,690.32

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Solution

The fourth proportional to 5,585.62, 8,378.82 and 1,690.32 is: 2,535.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,585.62 : 8,378.82 = 1,690.32 : x
  2. Step 2: Convert to fraction form
    5,585.62/8,378.82 = 1,690.32/x
  3. Step 3: Cross multiply
    5,585.62x = 8,378.82 × 1,690.32
  4. Step 4: Simplify right side
    5,585.62x = 14,162,887.02
  5. Step 5: Solve for x
    x = 14,162,887.02/5,585.62
  6. Step 6: Final answer
    x = 2,535.60

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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.