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Finding the Fourth Proportional to 3,339.96, 5,011.02 and 1,392.36

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Solution

The fourth proportional to 3,339.96, 5,011.02 and 1,392.36 is: 2,088.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,339.96 : 5,011.02 = 1,392.36 : x
  2. Step 2: Convert to fraction form
    3,339.96/5,011.02 = 1,392.36/x
  3. Step 3: Cross multiply
    3,339.96x = 5,011.02 × 1,392.36
  4. Step 4: Simplify right side
    3,339.96x = 6,977,143.81
  5. Step 5: Solve for x
    x = 6,977,143.81/3,339.96
  6. Step 6: Final answer
    x = 2,088.99

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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.