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Finding the Fourth Proportional to 1,888.95, 2,604.25 and 1,551.59

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Solution

The fourth proportional to 1,888.95, 2,604.25 and 1,551.59 is: 2,139.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.95 : 2,604.25 = 1,551.59 : x
  2. Step 2: Convert to fraction form
    1,888.95/2,604.25 = 1,551.59/x
  3. Step 3: Cross multiply
    1,888.95x = 2,604.25 × 1,551.59
  4. Step 4: Simplify right side
    1,888.95x = 4,040,726.94
  5. Step 5: Solve for x
    x = 4,040,726.94/1,888.95
  6. Step 6: Final answer
    x = 2,139.13

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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.