Home / 2,128.77-2,936.84-1,464.75

Finding the Fourth Proportional to 2,128.77, 2,936.84 and 1,464.75

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Solution

The fourth proportional to 2,128.77, 2,936.84 and 1,464.75 is: 2,020.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128.77 : 2,936.84 = 1,464.75 : x
  2. Step 2: Convert to fraction form
    2,128.77/2,936.84 = 1,464.75/x
  3. Step 3: Cross multiply
    2,128.77x = 2,936.84 × 1,464.75
  4. Step 4: Simplify right side
    2,128.77x = 4,301,729.07
  5. Step 5: Solve for x
    x = 4,301,729.07/2,128.77
  6. Step 6: Final answer
    x = 2,020.76

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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.