Home / 4,985.19-6,881.18-3,215.43

Finding the Fourth Proportional to 4,985.19, 6,881.18 and 3,215.43

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Solution

The fourth proportional to 4,985.19, 6,881.18 and 3,215.43 is: 4,438.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.19 : 6,881.18 = 3,215.43 : x
  2. Step 2: Convert to fraction form
    4,985.19/6,881.18 = 3,215.43/x
  3. Step 3: Cross multiply
    4,985.19x = 6,881.18 × 3,215.43
  4. Step 4: Simplify right side
    4,985.19x = 22,125,936.53
  5. Step 5: Solve for x
    x = 22,125,936.53/4,985.19
  6. Step 6: Final answer
    x = 4,438.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.