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Finding the Fourth Proportional to 1,903.12, 2,628.11 and 1,799.58

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Solution

The fourth proportional to 1,903.12, 2,628.11 and 1,799.58 is: 2,485.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,903.12 : 2,628.11 = 1,799.58 : x
  2. Step 2: Convert to fraction form
    1,903.12/2,628.11 = 1,799.58/x
  3. Step 3: Cross multiply
    1,903.12x = 2,628.11 × 1,799.58
  4. Step 4: Simplify right side
    1,903.12x = 4,729,494.19
  5. Step 5: Solve for x
    x = 4,729,494.19/1,903.12
  6. Step 6: Final answer
    x = 2,485.13

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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.