Home / 5,643.80-8,456.18-4,326.16

Finding the Fourth Proportional to 5,643.80, 8,456.18 and 4,326.16

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Solution

The fourth proportional to 5,643.80, 8,456.18 and 4,326.16 is: 6,481.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,643.80 : 8,456.18 = 4,326.16 : x
  2. Step 2: Convert to fraction form
    5,643.80/8,456.18 = 4,326.16/x
  3. Step 3: Cross multiply
    5,643.80x = 8,456.18 × 4,326.16
  4. Step 4: Simplify right side
    5,643.80x = 36,582,787.67
  5. Step 5: Solve for x
    x = 36,582,787.67/5,643.80
  6. Step 6: Final answer
    x = 6,481.94

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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.