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Finding the Fourth Proportional to 3,347.71, 5,021.55 and 1,398.85

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Solution

The fourth proportional to 3,347.71, 5,021.55 and 1,398.85 is: 2,098.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,347.71 : 5,021.55 = 1,398.85 : x
  2. Step 2: Convert to fraction form
    3,347.71/5,021.55 = 1,398.85/x
  3. Step 3: Cross multiply
    3,347.71x = 5,021.55 × 1,398.85
  4. Step 4: Simplify right side
    3,347.71x = 7,024,395.22
  5. Step 5: Solve for x
    x = 7,024,395.22/3,347.71
  6. Step 6: Final answer
    x = 2,098.27

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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.