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Finding the Fourth Proportional to 3,805.02, 5,707.51 and 1,339.55

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Solution

The fourth proportional to 3,805.02, 5,707.51 and 1,339.55 is: 2,009.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,805.02 : 5,707.51 = 1,339.55 : x
  2. Step 2: Convert to fraction form
    3,805.02/5,707.51 = 1,339.55/x
  3. Step 3: Cross multiply
    3,805.02x = 5,707.51 × 1,339.55
  4. Step 4: Simplify right side
    3,805.02x = 7,645,463.13
  5. Step 5: Solve for x
    x = 7,645,463.13/3,805.02
  6. Step 6: Final answer
    x = 2,009.31

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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.