Home / 1,110.30-1,662.60-1,077.45

Finding the Fourth Proportional to 1,110.30, 1,662.60 and 1,077.45

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Solution

The fourth proportional to 1,110.30, 1,662.60 and 1,077.45 is: 1,613.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.30 : 1,662.60 = 1,077.45 : x
  2. Step 2: Convert to fraction form
    1,110.30/1,662.60 = 1,077.45/x
  3. Step 3: Cross multiply
    1,110.30x = 1,662.60 × 1,077.45
  4. Step 4: Simplify right side
    1,110.30x = 1,791,368.37
  5. Step 5: Solve for x
    x = 1,791,368.37/1,110.30
  6. Step 6: Final answer
    x = 1,613.41

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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.