Home / 4,405.20-6,607.20-1,118.01

Finding the Fourth Proportional to 4,405.20, 6,607.20 and 1,118.01

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Solution

The fourth proportional to 4,405.20, 6,607.20 and 1,118.01 is: 1,676.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,405.20 : 6,607.20 = 1,118.01 : x
  2. Step 2: Convert to fraction form
    4,405.20/6,607.20 = 1,118.01/x
  3. Step 3: Cross multiply
    4,405.20x = 6,607.20 × 1,118.01
  4. Step 4: Simplify right side
    4,405.20x = 7,386,915.67
  5. Step 5: Solve for x
    x = 7,386,915.67/4,405.20
  6. Step 6: Final answer
    x = 1,676.86

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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.