Home / 5,214.43-7,811.56-2,898.91

Finding the Fourth Proportional to 5,214.43, 7,811.56 and 2,898.91

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Solution

The fourth proportional to 5,214.43, 7,811.56 and 2,898.91 is: 4,342.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,214.43 : 7,811.56 = 2,898.91 : x
  2. Step 2: Convert to fraction form
    5,214.43/7,811.56 = 2,898.91/x
  3. Step 3: Cross multiply
    5,214.43x = 7,811.56 × 2,898.91
  4. Step 4: Simplify right side
    5,214.43x = 22,644,955.85
  5. Step 5: Solve for x
    x = 22,644,955.85/5,214.43
  6. Step 6: Final answer
    x = 4,342.75

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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.