Home / 4,091.65-5,645.61-2,830.68

Finding the Fourth Proportional to 4,091.65, 5,645.61 and 2,830.68

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Solution

The fourth proportional to 4,091.65, 5,645.61 and 2,830.68 is: 3,905.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,091.65 : 5,645.61 = 2,830.68 : x
  2. Step 2: Convert to fraction form
    4,091.65/5,645.61 = 2,830.68/x
  3. Step 3: Cross multiply
    4,091.65x = 5,645.61 × 2,830.68
  4. Step 4: Simplify right side
    4,091.65x = 15,980,915.31
  5. Step 5: Solve for x
    x = 15,980,915.31/4,091.65
  6. Step 6: Final answer
    x = 3,905.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.