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Finding the Fourth Proportional to 2,948.69, 4,400.04 and 2,686.70

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Solution

The fourth proportional to 2,948.69, 4,400.04 and 2,686.70 is: 4,009.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,948.69 : 4,400.04 = 2,686.70 : x
  2. Step 2: Convert to fraction form
    2,948.69/4,400.04 = 2,686.70/x
  3. Step 3: Cross multiply
    2,948.69x = 4,400.04 × 2,686.70
  4. Step 4: Simplify right side
    2,948.69x = 11,821,552.03
  5. Step 5: Solve for x
    x = 11,821,552.03/2,948.69
  6. Step 6: Final answer
    x = 4,009.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.