Home / 5,276.18-7,282.09-3,390.12

Finding the Fourth Proportional to 5,276.18, 7,282.09 and 3,390.12

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Solution

The fourth proportional to 5,276.18, 7,282.09 and 3,390.12 is: 4,678.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.18 : 7,282.09 = 3,390.12 : x
  2. Step 2: Convert to fraction form
    5,276.18/7,282.09 = 3,390.12/x
  3. Step 3: Cross multiply
    5,276.18x = 7,282.09 × 3,390.12
  4. Step 4: Simplify right side
    5,276.18x = 24,687,142.00
  5. Step 5: Solve for x
    x = 24,687,142.00/5,276.18
  6. Step 6: Final answer
    x = 4,678.98

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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.