Home / 3,109.47-4,276.36-2,472.51

Finding the Fourth Proportional to 3,109.47, 4,276.36 and 2,472.51

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Solution

The fourth proportional to 3,109.47, 4,276.36 and 2,472.51 is: 3,400.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.47 : 4,276.36 = 2,472.51 : x
  2. Step 2: Convert to fraction form
    3,109.47/4,276.36 = 2,472.51/x
  3. Step 3: Cross multiply
    3,109.47x = 4,276.36 × 2,472.51
  4. Step 4: Simplify right side
    3,109.47x = 10,573,337.94
  5. Step 5: Solve for x
    x = 10,573,337.94/3,109.47
  6. Step 6: Final answer
    x = 3,400.36

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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.