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Finding the Fourth Proportional to 7, 10.46 and 6.48

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Solution

The fourth proportional to 7, 10.46 and 6.48 is: 9.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7 : 10.46 = 6.48 : x
  2. Step 2: Convert to fraction form
    7/10.46 = 6.48/x
  3. Step 3: Cross multiply
    7x = 10.46 × 6.48
  4. Step 4: Simplify right side
    7x = 67.78
  5. Step 5: Solve for x
    x = 67.78/7
  6. Step 6: Final answer
    x = 9.68

Related Problems

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.