Home / 3,903.12-5,854.50-1,953.72

Finding the Fourth Proportional to 3,903.12, 5,854.50 and 1,953.72

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Solution

The fourth proportional to 3,903.12, 5,854.50 and 1,953.72 is: 2,930.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.12 : 5,854.50 = 1,953.72 : x
  2. Step 2: Convert to fraction form
    3,903.12/5,854.50 = 1,953.72/x
  3. Step 3: Cross multiply
    3,903.12x = 5,854.50 × 1,953.72
  4. Step 4: Simplify right side
    3,903.12x = 11,438,053.74
  5. Step 5: Solve for x
    x = 11,438,053.74/3,903.12
  6. Step 6: Final answer
    x = 2,930.49

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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.