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Finding the Fourth Proportional to 3,136.19, 4,700.18 and 1,285.19

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Solution

The fourth proportional to 3,136.19, 4,700.18 and 1,285.19 is: 1,926.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.19 : 4,700.18 = 1,285.19 : x
  2. Step 2: Convert to fraction form
    3,136.19/4,700.18 = 1,285.19/x
  3. Step 3: Cross multiply
    3,136.19x = 4,700.18 × 1,285.19
  4. Step 4: Simplify right side
    3,136.19x = 6,040,624.33
  5. Step 5: Solve for x
    x = 6,040,624.33/3,136.19
  6. Step 6: Final answer
    x = 1,926.10

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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.