Home / 3,530.66-4,871.30-2,113.79

Finding the Fourth Proportional to 3,530.66, 4,871.30 and 2,113.79

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Solution

The fourth proportional to 3,530.66, 4,871.30 and 2,113.79 is: 2,916.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,530.66 : 4,871.30 = 2,113.79 : x
  2. Step 2: Convert to fraction form
    3,530.66/4,871.30 = 2,113.79/x
  3. Step 3: Cross multiply
    3,530.66x = 4,871.30 × 2,113.79
  4. Step 4: Simplify right side
    3,530.66x = 10,296,870.30
  5. Step 5: Solve for x
    x = 10,296,870.30/3,530.66
  6. Step 6: Final answer
    x = 2,916.42

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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.