Home / 5,107.48-7,048.29-2,869.39

Finding the Fourth Proportional to 5,107.48, 7,048.29 and 2,869.39

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Solution

The fourth proportional to 5,107.48, 7,048.29 and 2,869.39 is: 3,959.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,107.48 : 7,048.29 = 2,869.39 : x
  2. Step 2: Convert to fraction form
    5,107.48/7,048.29 = 2,869.39/x
  3. Step 3: Cross multiply
    5,107.48x = 7,048.29 × 2,869.39
  4. Step 4: Simplify right side
    5,107.48x = 20,224,292.84
  5. Step 5: Solve for x
    x = 20,224,292.84/5,107.48
  6. Step 6: Final answer
    x = 3,959.74

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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.