Home / 4,405.60-6,608.63-1,118.72

Finding the Fourth Proportional to 4,405.60, 6,608.63 and 1,118.72

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Solution

The fourth proportional to 4,405.60, 6,608.63 and 1,118.72 is: 1,678.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,405.60 : 6,608.63 = 1,118.72 : x
  2. Step 2: Convert to fraction form
    4,405.60/6,608.63 = 1,118.72/x
  3. Step 3: Cross multiply
    4,405.60x = 6,608.63 × 1,118.72
  4. Step 4: Simplify right side
    4,405.60x = 7,393,206.55
  5. Step 5: Solve for x
    x = 7,393,206.55/4,405.60
  6. Step 6: Final answer
    x = 1,678.14

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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.