Home / 3,125.22-4,687.59-1,275.84

Finding the Fourth Proportional to 3,125.22, 4,687.59 and 1,275.84

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Solution

The fourth proportional to 3,125.22, 4,687.59 and 1,275.84 is: 1,913.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.22 : 4,687.59 = 1,275.84 : x
  2. Step 2: Convert to fraction form
    3,125.22/4,687.59 = 1,275.84/x
  3. Step 3: Cross multiply
    3,125.22x = 4,687.59 × 1,275.84
  4. Step 4: Simplify right side
    3,125.22x = 5,980,614.83
  5. Step 5: Solve for x
    x = 5,980,614.83/3,125.22
  6. Step 6: Final answer
    x = 1,913.66

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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.