Home / 1,898.87-2,618.04-1,615.01

Finding the Fourth Proportional to 1,898.87, 2,618.04 and 1,615.01

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Solution

The fourth proportional to 1,898.87, 2,618.04 and 1,615.01 is: 2,226.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.87 : 2,618.04 = 1,615.01 : x
  2. Step 2: Convert to fraction form
    1,898.87/2,618.04 = 1,615.01/x
  3. Step 3: Cross multiply
    1,898.87x = 2,618.04 × 1,615.01
  4. Step 4: Simplify right side
    1,898.87x = 4,228,160.78
  5. Step 5: Solve for x
    x = 4,228,160.78/1,898.87
  6. Step 6: Final answer
    x = 2,226.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.