Home / 5,210.46-7,815.74-1,747.71

Finding the Fourth Proportional to 5,210.46, 7,815.74 and 1,747.71

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Solution

The fourth proportional to 5,210.46, 7,815.74 and 1,747.71 is: 2,621.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.46 : 7,815.74 = 1,747.71 : x
  2. Step 2: Convert to fraction form
    5,210.46/7,815.74 = 1,747.71/x
  3. Step 3: Cross multiply
    5,210.46x = 7,815.74 × 1,747.71
  4. Step 4: Simplify right side
    5,210.46x = 13,659,638.22
  5. Step 5: Solve for x
    x = 13,659,638.22/5,210.46
  6. Step 6: Final answer
    x = 2,621.58

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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.