Home / 3,189.02-4,780.86-1,341.56

Finding the Fourth Proportional to 3,189.02, 4,780.86 and 1,341.56

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Solution

The fourth proportional to 3,189.02, 4,780.86 and 1,341.56 is: 2,011.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.02 : 4,780.86 = 1,341.56 : x
  2. Step 2: Convert to fraction form
    3,189.02/4,780.86 = 1,341.56/x
  3. Step 3: Cross multiply
    3,189.02x = 4,780.86 × 1,341.56
  4. Step 4: Simplify right side
    3,189.02x = 6,413,810.54
  5. Step 5: Solve for x
    x = 6,413,810.54/3,189.02
  6. Step 6: Final answer
    x = 2,011.22

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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.