Home / 1,861.93-2,569.49-1,076.23

Finding the Fourth Proportional to 1,861.93, 2,569.49 and 1,076.23

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Solution

The fourth proportional to 1,861.93, 2,569.49 and 1,076.23 is: 1,485.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.93 : 2,569.49 = 1,076.23 : x
  2. Step 2: Convert to fraction form
    1,861.93/2,569.49 = 1,076.23/x
  3. Step 3: Cross multiply
    1,861.93x = 2,569.49 × 1,076.23
  4. Step 4: Simplify right side
    1,861.93x = 2,765,362.22
  5. Step 5: Solve for x
    x = 2,765,362.22/1,861.93
  6. Step 6: Final answer
    x = 1,485.21

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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.