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Finding the Fourth Proportional to 6,393.52, 8,823.28 and 3,561.16

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Solution

The fourth proportional to 6,393.52, 8,823.28 and 3,561.16 is: 4,914.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,393.52 : 8,823.28 = 3,561.16 : x
  2. Step 2: Convert to fraction form
    6,393.52/8,823.28 = 3,561.16/x
  3. Step 3: Cross multiply
    6,393.52x = 8,823.28 × 3,561.16
  4. Step 4: Simplify right side
    6,393.52x = 31,421,111.80
  5. Step 5: Solve for x
    x = 31,421,111.80/6,393.52
  6. Step 6: Final answer
    x = 4,914.52

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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.