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Finding the Fourth Proportional to 5,347.84, 8,021.58 and 1,885

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Solution

The fourth proportional to 5,347.84, 8,021.58 and 1,885 is: 2,827.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,347.84 : 8,021.58 = 1,885 : x
  2. Step 2: Convert to fraction form
    5,347.84/8,021.58 = 1,885/x
  3. Step 3: Cross multiply
    5,347.84x = 8,021.58 × 1,885
  4. Step 4: Simplify right side
    5,347.84x = 15,120,678.30
  5. Step 5: Solve for x
    x = 15,120,678.30/5,347.84
  6. Step 6: Final answer
    x = 2,827.44

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Double scale
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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.