Home / 1,904.19-2,628.76-1,313.70

Finding the Fourth Proportional to 1,904.19, 2,628.76 and 1,313.70

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Solution

The fourth proportional to 1,904.19, 2,628.76 and 1,313.70 is: 1,813.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,904.19 : 2,628.76 = 1,313.70 : x
  2. Step 2: Convert to fraction form
    1,904.19/2,628.76 = 1,313.70/x
  3. Step 3: Cross multiply
    1,904.19x = 2,628.76 × 1,313.70
  4. Step 4: Simplify right side
    1,904.19x = 3,453,388.87
  5. Step 5: Solve for x
    x = 3,453,388.87/1,904.19
  6. Step 6: Final answer
    x = 1,813.58

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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.