Home / 4,891.30-7,335.07-2,117.74

Finding the Fourth Proportional to 4,891.30, 7,335.07 and 2,117.74

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Solution

The fourth proportional to 4,891.30, 7,335.07 and 2,117.74 is: 3,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,891.30 : 7,335.07 = 2,117.74 : x
  2. Step 2: Convert to fraction form
    4,891.30/7,335.07 = 2,117.74/x
  3. Step 3: Cross multiply
    4,891.30x = 7,335.07 × 2,117.74
  4. Step 4: Simplify right side
    4,891.30x = 15,533,771.14
  5. Step 5: Solve for x
    x = 15,533,771.14/4,891.30
  6. Step 6: Final answer
    x = 3,175.80

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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.