Home / 2,145.32-2,960.14-1,294.60

Finding the Fourth Proportional to 2,145.32, 2,960.14 and 1,294.60

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Solution

The fourth proportional to 2,145.32, 2,960.14 and 1,294.60 is: 1,786.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145.32 : 2,960.14 = 1,294.60 : x
  2. Step 2: Convert to fraction form
    2,145.32/2,960.14 = 1,294.60/x
  3. Step 3: Cross multiply
    2,145.32x = 2,960.14 × 1,294.60
  4. Step 4: Simplify right side
    2,145.32x = 3,832,197.24
  5. Step 5: Solve for x
    x = 3,832,197.24/2,145.32
  6. Step 6: Final answer
    x = 1,786.31

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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.