Home / 3,189.18-4,400.42-2,070.02

Finding the Fourth Proportional to 3,189.18, 4,400.42 and 2,070.02

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Solution

The fourth proportional to 3,189.18, 4,400.42 and 2,070.02 is: 2,856.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.18 : 4,400.42 = 2,070.02 : x
  2. Step 2: Convert to fraction form
    3,189.18/4,400.42 = 2,070.02/x
  3. Step 3: Cross multiply
    3,189.18x = 4,400.42 × 2,070.02
  4. Step 4: Simplify right side
    3,189.18x = 9,108,957.41
  5. Step 5: Solve for x
    x = 9,108,957.41/3,189.18
  6. Step 6: Final answer
    x = 2,856.21

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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.