Home / 5,585.67-8,378.55-1,690.38

Finding the Fourth Proportional to 5,585.67, 8,378.55 and 1,690.38

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Solution

The fourth proportional to 5,585.67, 8,378.55 and 1,690.38 is: 2,535.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,585.67 : 8,378.55 = 1,690.38 : x
  2. Step 2: Convert to fraction form
    5,585.67/8,378.55 = 1,690.38/x
  3. Step 3: Cross multiply
    5,585.67x = 8,378.55 × 1,690.38
  4. Step 4: Simplify right side
    5,585.67x = 14,162,933.35
  5. Step 5: Solve for x
    x = 14,162,933.35/5,585.67
  6. Step 6: Final answer
    x = 2,535.58

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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.