Home / 3,109.47-4,685.64-2,573.70

Finding the Fourth Proportional to 3,109.47, 4,685.64 and 2,573.70

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Solution

The fourth proportional to 3,109.47, 4,685.64 and 2,573.70 is: 3,878.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.47 : 4,685.64 = 2,573.70 : x
  2. Step 2: Convert to fraction form
    3,109.47/4,685.64 = 2,573.70/x
  3. Step 3: Cross multiply
    3,109.47x = 4,685.64 × 2,573.70
  4. Step 4: Simplify right side
    3,109.47x = 12,059,431.67
  5. Step 5: Solve for x
    x = 12,059,431.67/3,109.47
  6. Step 6: Final answer
    x = 3,878.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.