Home / 2,500.26-3,750.40-1,390.36

Finding the Fourth Proportional to 2,500.26, 3,750.40 and 1,390.36

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Solution

The fourth proportional to 2,500.26, 3,750.40 and 1,390.36 is: 2,085.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,500.26 : 3,750.40 = 1,390.36 : x
  2. Step 2: Convert to fraction form
    2,500.26/3,750.40 = 1,390.36/x
  3. Step 3: Cross multiply
    2,500.26x = 3,750.40 × 1,390.36
  4. Step 4: Simplify right side
    2,500.26x = 5,214,406.14
  5. Step 5: Solve for x
    x = 5,214,406.14/2,500.26
  6. Step 6: Final answer
    x = 2,085.55

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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.