Home / 1,990.34-2,747.91-1,465.46

Finding the Fourth Proportional to 1,990.34, 2,747.91 and 1,465.46

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Solution

The fourth proportional to 1,990.34, 2,747.91 and 1,465.46 is: 2,023.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990.34 : 2,747.91 = 1,465.46 : x
  2. Step 2: Convert to fraction form
    1,990.34/2,747.91 = 1,465.46/x
  3. Step 3: Cross multiply
    1,990.34x = 2,747.91 × 1,465.46
  4. Step 4: Simplify right side
    1,990.34x = 4,026,952.19
  5. Step 5: Solve for x
    x = 4,026,952.19/1,990.34
  6. Step 6: Final answer
    x = 2,023.25

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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.