Home / 1,790.76-2,471.40-1,004.88

Finding the Fourth Proportional to 1,790.76, 2,471.40 and 1,004.88

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Solution

The fourth proportional to 1,790.76, 2,471.40 and 1,004.88 is: 1,386.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.76 : 2,471.40 = 1,004.88 : x
  2. Step 2: Convert to fraction form
    1,790.76/2,471.40 = 1,004.88/x
  3. Step 3: Cross multiply
    1,790.76x = 2,471.40 × 1,004.88
  4. Step 4: Simplify right side
    1,790.76x = 2,483,460.43
  5. Step 5: Solve for x
    x = 2,483,460.43/1,790.76
  6. Step 6: Final answer
    x = 1,386.82

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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.