Home / 1,370.87-2,055.08-1,023.78

Finding the Fourth Proportional to 1,370.87, 2,055.08 and 1,023.78

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Solution

The fourth proportional to 1,370.87, 2,055.08 and 1,023.78 is: 1,534.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370.87 : 2,055.08 = 1,023.78 : x
  2. Step 2: Convert to fraction form
    1,370.87/2,055.08 = 1,023.78/x
  3. Step 3: Cross multiply
    1,370.87x = 2,055.08 × 1,023.78
  4. Step 4: Simplify right side
    1,370.87x = 2,103,952.36
  5. Step 5: Solve for x
    x = 2,103,952.36/1,370.87
  6. Step 6: Final answer
    x = 1,534.76

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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.