Home / 7,100.28-9,798.03-3,955.86

Finding the Fourth Proportional to 7,100.28, 9,798.03 and 3,955.86

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Solution

The fourth proportional to 7,100.28, 9,798.03 and 3,955.86 is: 5,458.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,100.28 : 9,798.03 = 3,955.86 : x
  2. Step 2: Convert to fraction form
    7,100.28/9,798.03 = 3,955.86/x
  3. Step 3: Cross multiply
    7,100.28x = 9,798.03 × 3,955.86
  4. Step 4: Simplify right side
    7,100.28x = 38,759,634.96
  5. Step 5: Solve for x
    x = 38,759,634.96/7,100.28
  6. Step 6: Final answer
    x = 5,458.89

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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.