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Finding the Fourth Proportional to 2,991.35, 4,488.68 and 1,347.77

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Solution

The fourth proportional to 2,991.35, 4,488.68 and 1,347.77 is: 2,022.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.35 : 4,488.68 = 1,347.77 : x
  2. Step 2: Convert to fraction form
    2,991.35/4,488.68 = 1,347.77/x
  3. Step 3: Cross multiply
    2,991.35x = 4,488.68 × 1,347.77
  4. Step 4: Simplify right side
    2,991.35x = 6,049,722.83
  5. Step 5: Solve for x
    x = 6,049,722.83/2,991.35
  6. Step 6: Final answer
    x = 2,022.40

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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.