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Finding the Fourth Proportional to 5,205.74, 7,809.89 and 1,508.22

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Solution

The fourth proportional to 5,205.74, 7,809.89 and 1,508.22 is: 2,262.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.74 : 7,809.89 = 1,508.22 : x
  2. Step 2: Convert to fraction form
    5,205.74/7,809.89 = 1,508.22/x
  3. Step 3: Cross multiply
    5,205.74x = 7,809.89 × 1,508.22
  4. Step 4: Simplify right side
    5,205.74x = 11,779,024.75
  5. Step 5: Solve for x
    x = 11,779,024.75/5,205.74
  6. Step 6: Final answer
    x = 2,262.70

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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.