Home / 1,157.76-1,596.60-1,072.92

Finding the Fourth Proportional to 1,157.76, 1,596.60 and 1,072.92

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Solution

The fourth proportional to 1,157.76, 1,596.60 and 1,072.92 is: 1,479.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157.76 : 1,596.60 = 1,072.92 : x
  2. Step 2: Convert to fraction form
    1,157.76/1,596.60 = 1,072.92/x
  3. Step 3: Cross multiply
    1,157.76x = 1,596.60 × 1,072.92
  4. Step 4: Simplify right side
    1,157.76x = 1,713,024.07
  5. Step 5: Solve for x
    x = 1,713,024.07/1,157.76
  6. Step 6: Final answer
    x = 1,479.60

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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.