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Finding the Fourth Proportional to 1,888.40, 2,605.73 and 1,049.06

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Solution

The fourth proportional to 1,888.40, 2,605.73 and 1,049.06 is: 1,447.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.40 : 2,605.73 = 1,049.06 : x
  2. Step 2: Convert to fraction form
    1,888.40/2,605.73 = 1,049.06/x
  3. Step 3: Cross multiply
    1,888.40x = 2,605.73 × 1,049.06
  4. Step 4: Simplify right side
    1,888.40x = 2,733,567.11
  5. Step 5: Solve for x
    x = 2,733,567.11/1,888.40
  6. Step 6: Final answer
    x = 1,447.56

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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.