Home / 2,055.12-2,836.08-1,123.64

Finding the Fourth Proportional to 2,055.12, 2,836.08 and 1,123.64

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Solution

The fourth proportional to 2,055.12, 2,836.08 and 1,123.64 is: 1,550.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,055.12 : 2,836.08 = 1,123.64 : x
  2. Step 2: Convert to fraction form
    2,055.12/2,836.08 = 1,123.64/x
  3. Step 3: Cross multiply
    2,055.12x = 2,836.08 × 1,123.64
  4. Step 4: Simplify right side
    2,055.12x = 3,186,732.93
  5. Step 5: Solve for x
    x = 3,186,732.93/2,055.12
  6. Step 6: Final answer
    x = 1,550.63

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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.