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Finding the Fourth Proportional to 7,648.48, 10,555.60 and 4,664.48

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Solution

The fourth proportional to 7,648.48, 10,555.60 and 4,664.48 is: 6,437.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,648.48 : 10,555.60 = 4,664.48 : x
  2. Step 2: Convert to fraction form
    7,648.48/10,555.60 = 4,664.48/x
  3. Step 3: Cross multiply
    7,648.48x = 10,555.60 × 4,664.48
  4. Step 4: Simplify right side
    7,648.48x = 49,236,385.09
  5. Step 5: Solve for x
    x = 49,236,385.09/7,648.48
  6. Step 6: Final answer
    x = 6,437.41

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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.