Home / 7,127.37-10,685.28-2,970.49

Finding the Fourth Proportional to 7,127.37, 10,685.28 and 2,970.49

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Solution

The fourth proportional to 7,127.37, 10,685.28 and 2,970.49 is: 4,453.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.37 : 10,685.28 = 2,970.49 : x
  2. Step 2: Convert to fraction form
    7,127.37/10,685.28 = 2,970.49/x
  3. Step 3: Cross multiply
    7,127.37x = 10,685.28 × 2,970.49
  4. Step 4: Simplify right side
    7,127.37x = 31,740,517.39
  5. Step 5: Solve for x
    x = 31,740,517.39/7,127.37
  6. Step 6: Final answer
    x = 4,453.33

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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.