Home / 4,188.45-6,283.35-1,689.69

Finding the Fourth Proportional to 4,188.45, 6,283.35 and 1,689.69

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Solution

The fourth proportional to 4,188.45, 6,283.35 and 1,689.69 is: 2,534.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.45 : 6,283.35 = 1,689.69 : x
  2. Step 2: Convert to fraction form
    4,188.45/6,283.35 = 1,689.69/x
  3. Step 3: Cross multiply
    4,188.45x = 6,283.35 × 1,689.69
  4. Step 4: Simplify right side
    4,188.45x = 10,616,913.66
  5. Step 5: Solve for x
    x = 10,616,913.66/4,188.45
  6. Step 6: Final answer
    x = 2,534.81

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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.