Home / 1,790.87-2,471.38-1,004.91

Finding the Fourth Proportional to 1,790.87, 2,471.38 and 1,004.91

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Solution

The fourth proportional to 1,790.87, 2,471.38 and 1,004.91 is: 1,386.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.87 : 2,471.38 = 1,004.91 : x
  2. Step 2: Convert to fraction form
    1,790.87/2,471.38 = 1,004.91/x
  3. Step 3: Cross multiply
    1,790.87x = 2,471.38 × 1,004.91
  4. Step 4: Simplify right side
    1,790.87x = 2,483,514.48
  5. Step 5: Solve for x
    x = 2,483,514.48/1,790.87
  6. Step 6: Final answer
    x = 1,386.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.