Home / 1,148.60-1,720.88-1,110.54

Finding the Fourth Proportional to 1,148.60, 1,720.88 and 1,110.54

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Solution

The fourth proportional to 1,148.60, 1,720.88 and 1,110.54 is: 1,663.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148.60 : 1,720.88 = 1,110.54 : x
  2. Step 2: Convert to fraction form
    1,148.60/1,720.88 = 1,110.54/x
  3. Step 3: Cross multiply
    1,148.60x = 1,720.88 × 1,110.54
  4. Step 4: Simplify right side
    1,148.60x = 1,911,106.08
  5. Step 5: Solve for x
    x = 1,911,106.08/1,148.60
  6. Step 6: Final answer
    x = 1,663.86

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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.