Home / 3,555.05-5,330.14-1,909.94

Finding the Fourth Proportional to 3,555.05, 5,330.14 and 1,909.94

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Solution

The fourth proportional to 3,555.05, 5,330.14 and 1,909.94 is: 2,863.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.05 : 5,330.14 = 1,909.94 : x
  2. Step 2: Convert to fraction form
    3,555.05/5,330.14 = 1,909.94/x
  3. Step 3: Cross multiply
    3,555.05x = 5,330.14 × 1,909.94
  4. Step 4: Simplify right side
    3,555.05x = 10,180,216.17
  5. Step 5: Solve for x
    x = 10,180,216.17/3,555.05
  6. Step 6: Final answer
    x = 2,863.60

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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.