Home / 2,150.12-2,967.70-1,402.80

Finding the Fourth Proportional to 2,150.12, 2,967.70 and 1,402.80

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Solution

The fourth proportional to 2,150.12, 2,967.70 and 1,402.80 is: 1,936.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,150.12 : 2,967.70 = 1,402.80 : x
  2. Step 2: Convert to fraction form
    2,150.12/2,967.70 = 1,402.80/x
  3. Step 3: Cross multiply
    2,150.12x = 2,967.70 × 1,402.80
  4. Step 4: Simplify right side
    2,150.12x = 4,163,089.56
  5. Step 5: Solve for x
    x = 4,163,089.56/2,150.12
  6. Step 6: Final answer
    x = 1,936.21

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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.