Home / 7,142.68-10,710.09-2,210.95

Finding the Fourth Proportional to 7,142.68, 10,710.09 and 2,210.95

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Solution

The fourth proportional to 7,142.68, 10,710.09 and 2,210.95 is: 3,315.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142.68 : 10,710.09 = 2,210.95 : x
  2. Step 2: Convert to fraction form
    7,142.68/10,710.09 = 2,210.95/x
  3. Step 3: Cross multiply
    7,142.68x = 10,710.09 × 2,210.95
  4. Step 4: Simplify right side
    7,142.68x = 23,679,473.49
  5. Step 5: Solve for x
    x = 23,679,473.49/7,142.68
  6. Step 6: Final answer
    x = 3,315.21

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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.