Home / 5,678.22-7,836.30-3,440.16

Finding the Fourth Proportional to 5,678.22, 7,836.30 and 3,440.16

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Solution

The fourth proportional to 5,678.22, 7,836.30 and 3,440.16 is: 4,747.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.22 : 7,836.30 = 3,440.16 : x
  2. Step 2: Convert to fraction form
    5,678.22/7,836.30 = 3,440.16/x
  3. Step 3: Cross multiply
    5,678.22x = 7,836.30 × 3,440.16
  4. Step 4: Simplify right side
    5,678.22x = 26,958,125.81
  5. Step 5: Solve for x
    x = 26,958,125.81/5,678.22
  6. Step 6: Final answer
    x = 4,747.64

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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.