Home / 3,159.82-4,360.02-1,900.56

Finding the Fourth Proportional to 3,159.82, 4,360.02 and 1,900.56

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Solution

The fourth proportional to 3,159.82, 4,360.02 and 1,900.56 is: 2,622.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.82 : 4,360.02 = 1,900.56 : x
  2. Step 2: Convert to fraction form
    3,159.82/4,360.02 = 1,900.56/x
  3. Step 3: Cross multiply
    3,159.82x = 4,360.02 × 1,900.56
  4. Step 4: Simplify right side
    3,159.82x = 8,286,479.61
  5. Step 5: Solve for x
    x = 8,286,479.61/3,159.82
  6. Step 6: Final answer
    x = 2,622.45

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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.