Home / 5,121.77-7,683.46-1,834.79

Finding the Fourth Proportional to 5,121.77, 7,683.46 and 1,834.79

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Solution

The fourth proportional to 5,121.77, 7,683.46 and 1,834.79 is: 2,752.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.77 : 7,683.46 = 1,834.79 : x
  2. Step 2: Convert to fraction form
    5,121.77/7,683.46 = 1,834.79/x
  3. Step 3: Cross multiply
    5,121.77x = 7,683.46 × 1,834.79
  4. Step 4: Simplify right side
    5,121.77x = 14,097,492.57
  5. Step 5: Solve for x
    x = 14,097,492.57/5,121.77
  6. Step 6: Final answer
    x = 2,752.47

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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.