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Finding the Fourth Proportional to 1,574.36, 2,361.87 and 534.31

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Solution

The fourth proportional to 1,574.36, 2,361.87 and 534.31 is: 801.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,574.36 : 2,361.87 = 534.31 : x
  2. Step 2: Convert to fraction form
    1,574.36/2,361.87 = 534.31/x
  3. Step 3: Cross multiply
    1,574.36x = 2,361.87 × 534.31
  4. Step 4: Simplify right side
    1,574.36x = 1,261,970.76
  5. Step 5: Solve for x
    x = 1,261,970.76/1,574.36
  6. Step 6: Final answer
    x = 801.58

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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.