Home / 2,628.04-3,941.50-1,240.78

Finding the Fourth Proportional to 2,628.04, 3,941.50 and 1,240.78

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Solution

The fourth proportional to 2,628.04, 3,941.50 and 1,240.78 is: 1,860.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.04 : 3,941.50 = 1,240.78 : x
  2. Step 2: Convert to fraction form
    2,628.04/3,941.50 = 1,240.78/x
  3. Step 3: Cross multiply
    2,628.04x = 3,941.50 × 1,240.78
  4. Step 4: Simplify right side
    2,628.04x = 4,890,534.37
  5. Step 5: Solve for x
    x = 4,890,534.37/2,628.04
  6. Step 6: Final answer
    x = 1,860.91

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1.5x scale

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.