Home / 1,172.21-1,612.58-1,060.43

Finding the Fourth Proportional to 1,172.21, 1,612.58 and 1,060.43

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Solution

The fourth proportional to 1,172.21, 1,612.58 and 1,060.43 is: 1,458.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172.21 : 1,612.58 = 1,060.43 : x
  2. Step 2: Convert to fraction form
    1,172.21/1,612.58 = 1,060.43/x
  3. Step 3: Cross multiply
    1,172.21x = 1,612.58 × 1,060.43
  4. Step 4: Simplify right side
    1,172.21x = 1,710,014.84
  5. Step 5: Solve for x
    x = 1,710,014.84/1,172.21
  6. Step 6: Final answer
    x = 1,458.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.