Home / 1,790.85-2,471.56-1,004.90

Finding the Fourth Proportional to 1,790.85, 2,471.56 and 1,004.90

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Solution

The fourth proportional to 1,790.85, 2,471.56 and 1,004.90 is: 1,386.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.85 : 2,471.56 = 1,004.90 : x
  2. Step 2: Convert to fraction form
    1,790.85/2,471.56 = 1,004.90/x
  3. Step 3: Cross multiply
    1,790.85x = 2,471.56 × 1,004.90
  4. Step 4: Simplify right side
    1,790.85x = 2,483,670.64
  5. Step 5: Solve for x
    x = 2,483,670.64/1,790.85
  6. Step 6: Final answer
    x = 1,386.87

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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.