Home / 2,283.77-3,151.69-1,289.08

Finding the Fourth Proportional to 2,283.77, 3,151.69 and 1,289.08

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Solution

The fourth proportional to 2,283.77, 3,151.69 and 1,289.08 is: 1,778.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,283.77 : 3,151.69 = 1,289.08 : x
  2. Step 2: Convert to fraction form
    2,283.77/3,151.69 = 1,289.08/x
  3. Step 3: Cross multiply
    2,283.77x = 3,151.69 × 1,289.08
  4. Step 4: Simplify right side
    2,283.77x = 4,062,767.03
  5. Step 5: Solve for x
    x = 4,062,767.03/2,283.77
  6. Step 6: Final answer
    x = 1,778.98

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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.