Home / 1,945.40-2,913.80-1,793.64

Finding the Fourth Proportional to 1,945.40, 2,913.80 and 1,793.64

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Solution

The fourth proportional to 1,945.40, 2,913.80 and 1,793.64 is: 2,686.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945.40 : 2,913.80 = 1,793.64 : x
  2. Step 2: Convert to fraction form
    1,945.40/2,913.80 = 1,793.64/x
  3. Step 3: Cross multiply
    1,945.40x = 2,913.80 × 1,793.64
  4. Step 4: Simplify right side
    1,945.40x = 5,226,308.23
  5. Step 5: Solve for x
    x = 5,226,308.23/1,945.40
  6. Step 6: Final answer
    x = 2,686.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.