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Finding the Fourth Proportional to 1,714.16, 2,570.78 and 618.32

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Solution

The fourth proportional to 1,714.16, 2,570.78 and 618.32 is: 927.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,714.16 : 2,570.78 = 618.32 : x
  2. Step 2: Convert to fraction form
    1,714.16/2,570.78 = 618.32/x
  3. Step 3: Cross multiply
    1,714.16x = 2,570.78 × 618.32
  4. Step 4: Simplify right side
    1,714.16x = 1,589,564.69
  5. Step 5: Solve for x
    x = 1,589,564.69/1,714.16
  6. Step 6: Final answer
    x = 927.31

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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.