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Finding the Fourth Proportional to 1,156.75, 1,596.32 and 632.79

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Solution

The fourth proportional to 1,156.75, 1,596.32 and 632.79 is: 873.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,156.75 : 1,596.32 = 632.79 : x
  2. Step 2: Convert to fraction form
    1,156.75/1,596.32 = 632.79/x
  3. Step 3: Cross multiply
    1,156.75x = 1,596.32 × 632.79
  4. Step 4: Simplify right side
    1,156.75x = 1,010,135.33
  5. Step 5: Solve for x
    x = 1,010,135.33/1,156.75
  6. Step 6: Final answer
    x = 873.25

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1.5x scale

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.