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Finding the Fourth Proportional to 1,888.41, 2,605.47 and 1,141.83

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Solution

The fourth proportional to 1,888.41, 2,605.47 and 1,141.83 is: 1,575.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.41 : 2,605.47 = 1,141.83 : x
  2. Step 2: Convert to fraction form
    1,888.41/2,605.47 = 1,141.83/x
  3. Step 3: Cross multiply
    1,888.41x = 2,605.47 × 1,141.83
  4. Step 4: Simplify right side
    1,888.41x = 2,975,003.81
  5. Step 5: Solve for x
    x = 2,975,003.81/1,888.41
  6. Step 6: Final answer
    x = 1,575.40

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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.