Home / 3,484.26-4,805.88-2,155.65

Finding the Fourth Proportional to 3,484.26, 4,805.88 and 2,155.65

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Solution

The fourth proportional to 3,484.26, 4,805.88 and 2,155.65 is: 2,973.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,484.26 : 4,805.88 = 2,155.65 : x
  2. Step 2: Convert to fraction form
    3,484.26/4,805.88 = 2,155.65/x
  3. Step 3: Cross multiply
    3,484.26x = 4,805.88 × 2,155.65
  4. Step 4: Simplify right side
    3,484.26x = 10,359,795.22
  5. Step 5: Solve for x
    x = 10,359,795.22/3,484.26
  6. Step 6: Final answer
    x = 2,973.31

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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.