Home / 1,860.38-2,791.04-1,313.63

Finding the Fourth Proportional to 1,860.38, 2,791.04 and 1,313.63

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Solution

The fourth proportional to 1,860.38, 2,791.04 and 1,313.63 is: 1,970.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.38 : 2,791.04 = 1,313.63 : x
  2. Step 2: Convert to fraction form
    1,860.38/2,791.04 = 1,313.63/x
  3. Step 3: Cross multiply
    1,860.38x = 2,791.04 × 1,313.63
  4. Step 4: Simplify right side
    1,860.38x = 3,666,393.88
  5. Step 5: Solve for x
    x = 3,666,393.88/1,860.38
  6. Step 6: Final answer
    x = 1,970.78

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1.5x scale

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.