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Finding the Fourth Proportional to 3,225.48, 4,837.92 and 885.40

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Solution

The fourth proportional to 3,225.48, 4,837.92 and 885.40 is: 1,328.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,225.48 : 4,837.92 = 885.40 : x
  2. Step 2: Convert to fraction form
    3,225.48/4,837.92 = 885.40/x
  3. Step 3: Cross multiply
    3,225.48x = 4,837.92 × 885.40
  4. Step 4: Simplify right side
    3,225.48x = 4,283,494.37
  5. Step 5: Solve for x
    x = 4,283,494.37/3,225.48
  6. Step 6: Final answer
    x = 1,328.02

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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.