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Finding the Fourth Proportional to 1,888.12, 2,605.56 and 1,048.82

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Solution

The fourth proportional to 1,888.12, 2,605.56 and 1,048.82 is: 1,447.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.12 : 2,605.56 = 1,048.82 : x
  2. Step 2: Convert to fraction form
    1,888.12/2,605.56 = 1,048.82/x
  3. Step 3: Cross multiply
    1,888.12x = 2,605.56 × 1,048.82
  4. Step 4: Simplify right side
    1,888.12x = 2,732,763.44
  5. Step 5: Solve for x
    x = 2,732,763.44/1,888.12
  6. Step 6: Final answer
    x = 1,447.35

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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.