Home / 7,220.17-10,829.40-1,955.62

Finding the Fourth Proportional to 7,220.17, 10,829.40 and 1,955.62

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Solution

The fourth proportional to 7,220.17, 10,829.40 and 1,955.62 is: 2,933.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.17 : 10,829.40 = 1,955.62 : x
  2. Step 2: Convert to fraction form
    7,220.17/10,829.40 = 1,955.62/x
  3. Step 3: Cross multiply
    7,220.17x = 10,829.40 × 1,955.62
  4. Step 4: Simplify right side
    7,220.17x = 21,178,191.23
  5. Step 5: Solve for x
    x = 21,178,191.23/7,220.17
  6. Step 6: Final answer
    x = 2,933.20

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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.