Home / 1,568.13-2,349.42-1,398.63

Finding the Fourth Proportional to 1,568.13, 2,349.42 and 1,398.63

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Solution

The fourth proportional to 1,568.13, 2,349.42 and 1,398.63 is: 2,095.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,568.13 : 2,349.42 = 1,398.63 : x
  2. Step 2: Convert to fraction form
    1,568.13/2,349.42 = 1,398.63/x
  3. Step 3: Cross multiply
    1,568.13x = 2,349.42 × 1,398.63
  4. Step 4: Simplify right side
    1,568.13x = 3,285,969.29
  5. Step 5: Solve for x
    x = 3,285,969.29/1,568.13
  6. Step 6: Final answer
    x = 2,095.47

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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.