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Finding the Fourth Proportional to 1,885.18, 2,828.43 and 845.08

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Solution

The fourth proportional to 1,885.18, 2,828.43 and 845.08 is: 1,267.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885.18 : 2,828.43 = 845.08 : x
  2. Step 2: Convert to fraction form
    1,885.18/2,828.43 = 845.08/x
  3. Step 3: Cross multiply
    1,885.18x = 2,828.43 × 845.08
  4. Step 4: Simplify right side
    1,885.18x = 2,390,249.62
  5. Step 5: Solve for x
    x = 2,390,249.62/1,885.18
  6. Step 6: Final answer
    x = 1,267.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.