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Finding the Fourth Proportional to 7,220.52, 10,829.84 and 1,955.93

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Solution

The fourth proportional to 7,220.52, 10,829.84 and 1,955.93 is: 2,933.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.52 : 10,829.84 = 1,955.93 : x
  2. Step 2: Convert to fraction form
    7,220.52/10,829.84 = 1,955.93/x
  3. Step 3: Cross multiply
    7,220.52x = 10,829.84 × 1,955.93
  4. Step 4: Simplify right side
    7,220.52x = 21,182,345.02
  5. Step 5: Solve for x
    x = 21,182,345.02/7,220.52
  6. Step 6: Final answer
    x = 2,933.63

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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.