Home / 3,098.05-4,647.08-1,318.65

Finding the Fourth Proportional to 3,098.05, 4,647.08 and 1,318.65

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Solution

The fourth proportional to 3,098.05, 4,647.08 and 1,318.65 is: 1,977.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,098.05 : 4,647.08 = 1,318.65 : x
  2. Step 2: Convert to fraction form
    3,098.05/4,647.08 = 1,318.65/x
  3. Step 3: Cross multiply
    3,098.05x = 4,647.08 × 1,318.65
  4. Step 4: Simplify right side
    3,098.05x = 6,127,872.04
  5. Step 5: Solve for x
    x = 6,127,872.04/3,098.05
  6. Step 6: Final answer
    x = 1,977.98

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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.