Home / 3,106.12-4,656.24-1,157.80

Finding the Fourth Proportional to 3,106.12, 4,656.24 and 1,157.80

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Solution

The fourth proportional to 3,106.12, 4,656.24 and 1,157.80 is: 1,735.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.12 : 4,656.24 = 1,157.80 : x
  2. Step 2: Convert to fraction form
    3,106.12/4,656.24 = 1,157.80/x
  3. Step 3: Cross multiply
    3,106.12x = 4,656.24 × 1,157.80
  4. Step 4: Simplify right side
    3,106.12x = 5,390,994.67
  5. Step 5: Solve for x
    x = 5,390,994.67/3,106.12
  6. Step 6: Final answer
    x = 1,735.60

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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.