Home / 7,214.10-9,955.53-4,231.70

Finding the Fourth Proportional to 7,214.10, 9,955.53 and 4,231.70

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Solution

The fourth proportional to 7,214.10, 9,955.53 and 4,231.70 is: 5,839.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,214.10 : 9,955.53 = 4,231.70 : x
  2. Step 2: Convert to fraction form
    7,214.10/9,955.53 = 4,231.70/x
  3. Step 3: Cross multiply
    7,214.10x = 9,955.53 × 4,231.70
  4. Step 4: Simplify right side
    7,214.10x = 42,128,816.30
  5. Step 5: Solve for x
    x = 42,128,816.30/7,214.10
  6. Step 6: Final answer
    x = 5,839.79

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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.