Home / 2,138.04-3,207.54-1,657.08

Finding the Fourth Proportional to 2,138.04, 3,207.54 and 1,657.08

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Solution

The fourth proportional to 2,138.04, 3,207.54 and 1,657.08 is: 2,485.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138.04 : 3,207.54 = 1,657.08 : x
  2. Step 2: Convert to fraction form
    2,138.04/3,207.54 = 1,657.08/x
  3. Step 3: Cross multiply
    2,138.04x = 3,207.54 × 1,657.08
  4. Step 4: Simplify right side
    2,138.04x = 5,315,150.38
  5. Step 5: Solve for x
    x = 5,315,150.38/2,138.04
  6. Step 6: Final answer
    x = 2,485.99

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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.