Home / 5,677.37-8,515.52-1,781.09

Finding the Fourth Proportional to 5,677.37, 8,515.52 and 1,781.09

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Solution

The fourth proportional to 5,677.37, 8,515.52 and 1,781.09 is: 2,671.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,677.37 : 8,515.52 = 1,781.09 : x
  2. Step 2: Convert to fraction form
    5,677.37/8,515.52 = 1,781.09/x
  3. Step 3: Cross multiply
    5,677.37x = 8,515.52 × 1,781.09
  4. Step 4: Simplify right side
    5,677.37x = 15,166,898.61
  5. Step 5: Solve for x
    x = 15,166,898.61/5,677.37
  6. Step 6: Final answer
    x = 2,671.47

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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.