Home / 2,257.10-3,113.99-1,325.60

Finding the Fourth Proportional to 2,257.10, 3,113.99 and 1,325.60

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Solution

The fourth proportional to 2,257.10, 3,113.99 and 1,325.60 is: 1,828.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.10 : 3,113.99 = 1,325.60 : x
  2. Step 2: Convert to fraction form
    2,257.10/3,113.99 = 1,325.60/x
  3. Step 3: Cross multiply
    2,257.10x = 3,113.99 × 1,325.60
  4. Step 4: Simplify right side
    2,257.10x = 4,127,889.57
  5. Step 5: Solve for x
    x = 4,127,889.57/2,257.10
  6. Step 6: Final answer
    x = 1,828.85

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1.5x scale

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.