Home / 3,210.20-4,430.82-2,089.19

Finding the Fourth Proportional to 3,210.20, 4,430.82 and 2,089.19

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Solution

The fourth proportional to 3,210.20, 4,430.82 and 2,089.19 is: 2,883.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.20 : 4,430.82 = 2,089.19 : x
  2. Step 2: Convert to fraction form
    3,210.20/4,430.82 = 2,089.19/x
  3. Step 3: Cross multiply
    3,210.20x = 4,430.82 × 2,089.19
  4. Step 4: Simplify right side
    3,210.20x = 9,256,836.40
  5. Step 5: Solve for x
    x = 9,256,836.40/3,210.20
  6. Step 6: Final answer
    x = 2,883.57

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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.