Home / 2,289.25-3,157.86-1,492.80

Finding the Fourth Proportional to 2,289.25, 3,157.86 and 1,492.80

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Solution

The fourth proportional to 2,289.25, 3,157.86 and 1,492.80 is: 2,059.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.25 : 3,157.86 = 1,492.80 : x
  2. Step 2: Convert to fraction form
    2,289.25/3,157.86 = 1,492.80/x
  3. Step 3: Cross multiply
    2,289.25x = 3,157.86 × 1,492.80
  4. Step 4: Simplify right side
    2,289.25x = 4,714,053.41
  5. Step 5: Solve for x
    x = 4,714,053.41/2,289.25
  6. Step 6: Final answer
    x = 2,059.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.