Home / 3,125.80-4,688.70-1,642.97

Finding the Fourth Proportional to 3,125.80, 4,688.70 and 1,642.97

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Solution

The fourth proportional to 3,125.80, 4,688.70 and 1,642.97 is: 2,464.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.80 : 4,688.70 = 1,642.97 : x
  2. Step 2: Convert to fraction form
    3,125.80/4,688.70 = 1,642.97/x
  3. Step 3: Cross multiply
    3,125.80x = 4,688.70 × 1,642.97
  4. Step 4: Simplify right side
    3,125.80x = 7,703,393.44
  5. Step 5: Solve for x
    x = 7,703,393.44/3,125.80
  6. Step 6: Final answer
    x = 2,464.46

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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.