Home / 1,618.38-2,422.08-1,358.67

Finding the Fourth Proportional to 1,618.38, 2,422.08 and 1,358.67

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Solution

The fourth proportional to 1,618.38, 2,422.08 and 1,358.67 is: 2,033.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618.38 : 2,422.08 = 1,358.67 : x
  2. Step 2: Convert to fraction form
    1,618.38/2,422.08 = 1,358.67/x
  3. Step 3: Cross multiply
    1,618.38x = 2,422.08 × 1,358.67
  4. Step 4: Simplify right side
    1,618.38x = 3,290,807.43
  5. Step 5: Solve for x
    x = 3,290,807.43/1,618.38
  6. Step 6: Final answer
    x = 2,033.40

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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.