Home / 2,125.45-2,933.28-1,240.93

Finding the Fourth Proportional to 2,125.45, 2,933.28 and 1,240.93

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Solution

The fourth proportional to 2,125.45, 2,933.28 and 1,240.93 is: 1,712.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.45 : 2,933.28 = 1,240.93 : x
  2. Step 2: Convert to fraction form
    2,125.45/2,933.28 = 1,240.93/x
  3. Step 3: Cross multiply
    2,125.45x = 2,933.28 × 1,240.93
  4. Step 4: Simplify right side
    2,125.45x = 3,639,995.15
  5. Step 5: Solve for x
    x = 3,639,995.15/2,125.45
  6. Step 6: Final answer
    x = 1,712.58

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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.