Home / 1,188.69-1,635.51-1,161.06

Finding the Fourth Proportional to 1,188.69, 1,635.51 and 1,161.06

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Solution

The fourth proportional to 1,188.69, 1,635.51 and 1,161.06 is: 1,597.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188.69 : 1,635.51 = 1,161.06 : x
  2. Step 2: Convert to fraction form
    1,188.69/1,635.51 = 1,161.06/x
  3. Step 3: Cross multiply
    1,188.69x = 1,635.51 × 1,161.06
  4. Step 4: Simplify right side
    1,188.69x = 1,898,925.24
  5. Step 5: Solve for x
    x = 1,898,925.24/1,188.69
  6. Step 6: Final answer
    x = 1,597.49

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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.