Home / 5,639.58-7,784.18-3,282.18

Finding the Fourth Proportional to 5,639.58, 7,784.18 and 3,282.18

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Solution

The fourth proportional to 5,639.58, 7,784.18 and 3,282.18 is: 4,530.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639.58 : 7,784.18 = 3,282.18 : x
  2. Step 2: Convert to fraction form
    5,639.58/7,784.18 = 3,282.18/x
  3. Step 3: Cross multiply
    5,639.58x = 7,784.18 × 3,282.18
  4. Step 4: Simplify right side
    5,639.58x = 25,549,079.91
  5. Step 5: Solve for x
    x = 25,549,079.91/5,639.58
  6. Step 6: Final answer
    x = 4,530.32

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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.