Home / 4,155.12-6,231.96-1,557.60

Finding the Fourth Proportional to 4,155.12, 6,231.96 and 1,557.60

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Solution

The fourth proportional to 4,155.12, 6,231.96 and 1,557.60 is: 2,336.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,155.12 : 6,231.96 = 1,557.60 : x
  2. Step 2: Convert to fraction form
    4,155.12/6,231.96 = 1,557.60/x
  3. Step 3: Cross multiply
    4,155.12x = 6,231.96 × 1,557.60
  4. Step 4: Simplify right side
    4,155.12x = 9,706,900.90
  5. Step 5: Solve for x
    x = 9,706,900.90/4,155.12
  6. Step 6: Final answer
    x = 2,336.13

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1.5x scale

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.