Home / 3,126.06-4,689.27-817.50

Finding the Fourth Proportional to 3,126.06, 4,689.27 and 817.50

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Solution

The fourth proportional to 3,126.06, 4,689.27 and 817.50 is: 1,226.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.06 : 4,689.27 = 817.50 : x
  2. Step 2: Convert to fraction form
    3,126.06/4,689.27 = 817.50/x
  3. Step 3: Cross multiply
    3,126.06x = 4,689.27 × 817.50
  4. Step 4: Simplify right side
    3,126.06x = 3,833,478.23
  5. Step 5: Solve for x
    x = 3,833,478.23/3,126.06
  6. Step 6: Final answer
    x = 1,226.30

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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.