Home / 1,923.71-2,864.80-1,799.15

Finding the Fourth Proportional to 1,923.71, 2,864.80 and 1,799.15

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Solution

The fourth proportional to 1,923.71, 2,864.80 and 1,799.15 is: 2,679.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,923.71 : 2,864.80 = 1,799.15 : x
  2. Step 2: Convert to fraction form
    1,923.71/2,864.80 = 1,799.15/x
  3. Step 3: Cross multiply
    1,923.71x = 2,864.80 × 1,799.15
  4. Step 4: Simplify right side
    1,923.71x = 5,154,201.14
  5. Step 5: Solve for x
    x = 5,154,201.14/1,923.71
  6. Step 6: Final answer
    x = 2,679.31

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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.