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Finding the Fourth Proportional to 5,326.80, 7,447.80 and 5,326.80

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Solution

The fourth proportional to 5,326.80, 7,447.80 and 5,326.80 is: 7,447.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,326.80 : 7,447.80 = 5,326.80 : x
  2. Step 2: Convert to fraction form
    5,326.80/7,447.80 = 5,326.80/x
  3. Step 3: Cross multiply
    5,326.80x = 7,447.80 × 5,326.80
  4. Step 4: Simplify right side
    5,326.80x = 39,672,941.04
  5. Step 5: Solve for x
    x = 39,672,941.04/5,326.80
  6. Step 6: Final answer
    x = 7,447.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.