Home / 5,424.36-8,134.40-1,913.61

Finding the Fourth Proportional to 5,424.36, 8,134.40 and 1,913.61

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Solution

The fourth proportional to 5,424.36, 8,134.40 and 1,913.61 is: 2,869.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.36 : 8,134.40 = 1,913.61 : x
  2. Step 2: Convert to fraction form
    5,424.36/8,134.40 = 1,913.61/x
  3. Step 3: Cross multiply
    5,424.36x = 8,134.40 × 1,913.61
  4. Step 4: Simplify right side
    5,424.36x = 15,566,059.62
  5. Step 5: Solve for x
    x = 15,566,059.62/5,424.36
  6. Step 6: Final answer
    x = 2,869.66

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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.