Home / 7,071.80-10,601.40-3,557.21

Finding the Fourth Proportional to 7,071.80, 10,601.40 and 3,557.21

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Solution

The fourth proportional to 7,071.80, 10,601.40 and 3,557.21 is: 5,332.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,071.80 : 10,601.40 = 3,557.21 : x
  2. Step 2: Convert to fraction form
    7,071.80/10,601.40 = 3,557.21/x
  3. Step 3: Cross multiply
    7,071.80x = 10,601.40 × 3,557.21
  4. Step 4: Simplify right side
    7,071.80x = 37,711,353.09
  5. Step 5: Solve for x
    x = 37,711,353.09/7,071.80
  6. Step 6: Final answer
    x = 5,332.64

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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.