Home / 1,864.28-2,795.61-631.36

Finding the Fourth Proportional to 1,864.28, 2,795.61 and 631.36

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Solution

The fourth proportional to 1,864.28, 2,795.61 and 631.36 is: 946.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864.28 : 2,795.61 = 631.36 : x
  2. Step 2: Convert to fraction form
    1,864.28/2,795.61 = 631.36/x
  3. Step 3: Cross multiply
    1,864.28x = 2,795.61 × 631.36
  4. Step 4: Simplify right side
    1,864.28x = 1,765,042.19
  5. Step 5: Solve for x
    x = 1,765,042.19/1,864.28
  6. Step 6: Final answer
    x = 946.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.