Home / 3,215.41-4,824.93-1,985.83

Finding the Fourth Proportional to 3,215.41, 4,824.93 and 1,985.83

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Solution

The fourth proportional to 3,215.41, 4,824.93 and 1,985.83 is: 2,979.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.41 : 4,824.93 = 1,985.83 : x
  2. Step 2: Convert to fraction form
    3,215.41/4,824.93 = 1,985.83/x
  3. Step 3: Cross multiply
    3,215.41x = 4,824.93 × 1,985.83
  4. Step 4: Simplify right side
    3,215.41x = 9,581,490.74
  5. Step 5: Solve for x
    x = 9,581,490.74/3,215.41
  6. Step 6: Final answer
    x = 2,979.87

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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.