Home / 2,011.24-2,776.26-1,391.08

Finding the Fourth Proportional to 2,011.24, 2,776.26 and 1,391.08

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Solution

The fourth proportional to 2,011.24, 2,776.26 and 1,391.08 is: 1,920.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.24 : 2,776.26 = 1,391.08 : x
  2. Step 2: Convert to fraction form
    2,011.24/2,776.26 = 1,391.08/x
  3. Step 3: Cross multiply
    2,011.24x = 2,776.26 × 1,391.08
  4. Step 4: Simplify right side
    2,011.24x = 3,861,999.76
  5. Step 5: Solve for x
    x = 3,861,999.76/2,011.24
  6. Step 6: Final answer
    x = 1,920.21

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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.