Home / 3,188.61-4,780.71-1,625.58

Finding the Fourth Proportional to 3,188.61, 4,780.71 and 1,625.58

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Solution

The fourth proportional to 3,188.61, 4,780.71 and 1,625.58 is: 2,437.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.61 : 4,780.71 = 1,625.58 : x
  2. Step 2: Convert to fraction form
    3,188.61/4,780.71 = 1,625.58/x
  3. Step 3: Cross multiply
    3,188.61x = 4,780.71 × 1,625.58
  4. Step 4: Simplify right side
    3,188.61x = 7,771,426.56
  5. Step 5: Solve for x
    x = 7,771,426.56/3,188.61
  6. Step 6: Final answer
    x = 2,437.25

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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.