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Finding the Fourth Proportional to 2,392.60, 3,572.76 and 1,954.71

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Solution

The fourth proportional to 2,392.60, 3,572.76 and 1,954.71 is: 2,918.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,392.60 : 3,572.76 = 1,954.71 : x
  2. Step 2: Convert to fraction form
    2,392.60/3,572.76 = 1,954.71/x
  3. Step 3: Cross multiply
    2,392.60x = 3,572.76 × 1,954.71
  4. Step 4: Simplify right side
    2,392.60x = 6,983,708.36
  5. Step 5: Solve for x
    x = 6,983,708.36/2,392.60
  6. Step 6: Final answer
    x = 2,918.88

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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.