Home / 7,748.79-11,622.97-2,818.52

Finding the Fourth Proportional to 7,748.79, 11,622.97 and 2,818.52

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Solution

The fourth proportional to 7,748.79, 11,622.97 and 2,818.52 is: 4,227.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,748.79 : 11,622.97 = 2,818.52 : x
  2. Step 2: Convert to fraction form
    7,748.79/11,622.97 = 2,818.52/x
  3. Step 3: Cross multiply
    7,748.79x = 11,622.97 × 2,818.52
  4. Step 4: Simplify right side
    7,748.79x = 32,759,573.40
  5. Step 5: Solve for x
    x = 32,759,573.40/7,748.79
  6. Step 6: Final answer
    x = 4,227.70

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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.