Home / 3,555.02-4,904.42-2,138.69

Finding the Fourth Proportional to 3,555.02, 4,904.42 and 2,138.69

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Solution

The fourth proportional to 3,555.02, 4,904.42 and 2,138.69 is: 2,950.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.02 : 4,904.42 = 2,138.69 : x
  2. Step 2: Convert to fraction form
    3,555.02/4,904.42 = 2,138.69/x
  3. Step 3: Cross multiply
    3,555.02x = 4,904.42 × 2,138.69
  4. Step 4: Simplify right side
    3,555.02x = 10,489,035.58
  5. Step 5: Solve for x
    x = 10,489,035.58/3,555.02
  6. Step 6: Final answer
    x = 2,950.48

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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.