Home / 6,631.48-9,148.82-4,275

Finding the Fourth Proportional to 6,631.48, 9,148.82 and 4,275

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Solution

The fourth proportional to 6,631.48, 9,148.82 and 4,275 is: 5,897.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631.48 : 9,148.82 = 4,275 : x
  2. Step 2: Convert to fraction form
    6,631.48/9,148.82 = 4,275/x
  3. Step 3: Cross multiply
    6,631.48x = 9,148.82 × 4,275
  4. Step 4: Simplify right side
    6,631.48x = 39,111,205.50
  5. Step 5: Solve for x
    x = 39,111,205.50/6,631.48
  6. Step 6: Final answer
    x = 5,897.81

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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.