Home / 2,265.49-3,126.36-1,321.30

Finding the Fourth Proportional to 2,265.49, 3,126.36 and 1,321.30

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Solution

The fourth proportional to 2,265.49, 3,126.36 and 1,321.30 is: 1,823.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,265.49 : 3,126.36 = 1,321.30 : x
  2. Step 2: Convert to fraction form
    2,265.49/3,126.36 = 1,321.30/x
  3. Step 3: Cross multiply
    2,265.49x = 3,126.36 × 1,321.30
  4. Step 4: Simplify right side
    2,265.49x = 4,130,859.47
  5. Step 5: Solve for x
    x = 4,130,859.47/2,265.49
  6. Step 6: Final answer
    x = 1,823.38

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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.