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Finding the Fourth Proportional to 3,707.08, 5,115.78 and 2,051.08

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Solution

The fourth proportional to 3,707.08, 5,115.78 and 2,051.08 is: 2,830.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,707.08 : 5,115.78 = 2,051.08 : x
  2. Step 2: Convert to fraction form
    3,707.08/5,115.78 = 2,051.08/x
  3. Step 3: Cross multiply
    3,707.08x = 5,115.78 × 2,051.08
  4. Step 4: Simplify right side
    3,707.08x = 10,492,874.04
  5. Step 5: Solve for x
    x = 10,492,874.04/3,707.08
  6. Step 6: Final answer
    x = 2,830.50

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1.5x scale

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.