Home / 5,353.28-8,031.12-1,890.50

Finding the Fourth Proportional to 5,353.28, 8,031.12 and 1,890.50

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Solution

The fourth proportional to 5,353.28, 8,031.12 and 1,890.50 is: 2,836.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,353.28 : 8,031.12 = 1,890.50 : x
  2. Step 2: Convert to fraction form
    5,353.28/8,031.12 = 1,890.50/x
  3. Step 3: Cross multiply
    5,353.28x = 8,031.12 × 1,890.50
  4. Step 4: Simplify right side
    5,353.28x = 15,182,832.36
  5. Step 5: Solve for x
    x = 15,182,832.36/5,353.28
  6. Step 6: Final answer
    x = 2,836.17

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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.