Home / 1,618.98-2,426.83-631.17

Finding the Fourth Proportional to 1,618.98, 2,426.83 and 631.17

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Solution

The fourth proportional to 1,618.98, 2,426.83 and 631.17 is: 946.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618.98 : 2,426.83 = 631.17 : x
  2. Step 2: Convert to fraction form
    1,618.98/2,426.83 = 631.17/x
  3. Step 3: Cross multiply
    1,618.98x = 2,426.83 × 631.17
  4. Step 4: Simplify right side
    1,618.98x = 1,531,740.71
  5. Step 5: Solve for x
    x = 1,531,740.71/1,618.98
  6. Step 6: Final answer
    x = 946.12

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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.