Home / 2,918-4,375.56-1,068.86

Finding the Fourth Proportional to 2,918, 4,375.56 and 1,068.86

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Solution

The fourth proportional to 2,918, 4,375.56 and 1,068.86 is: 1,602.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918 : 4,375.56 = 1,068.86 : x
  2. Step 2: Convert to fraction form
    2,918/4,375.56 = 1,068.86/x
  3. Step 3: Cross multiply
    2,918x = 4,375.56 × 1,068.86
  4. Step 4: Simplify right side
    2,918x = 4,676,861.06
  5. Step 5: Solve for x
    x = 4,676,861.06/2,918
  6. Step 6: Final answer
    x = 1,602.76

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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.