Home / 2,586.08-3,875.40-1,611.60

Finding the Fourth Proportional to 2,586.08, 3,875.40 and 1,611.60

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Solution

The fourth proportional to 2,586.08, 3,875.40 and 1,611.60 is: 2,415.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,586.08 : 3,875.40 = 1,611.60 : x
  2. Step 2: Convert to fraction form
    2,586.08/3,875.40 = 1,611.60/x
  3. Step 3: Cross multiply
    2,586.08x = 3,875.40 × 1,611.60
  4. Step 4: Simplify right side
    2,586.08x = 6,245,594.64
  5. Step 5: Solve for x
    x = 6,245,594.64/2,586.08
  6. Step 6: Final answer
    x = 2,415.08

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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.