Home / 2,813.51-3,882.66-1,554.64

Finding the Fourth Proportional to 2,813.51, 3,882.66 and 1,554.64

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Solution

The fourth proportional to 2,813.51, 3,882.66 and 1,554.64 is: 2,145.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.51 : 3,882.66 = 1,554.64 : x
  2. Step 2: Convert to fraction form
    2,813.51/3,882.66 = 1,554.64/x
  3. Step 3: Cross multiply
    2,813.51x = 3,882.66 × 1,554.64
  4. Step 4: Simplify right side
    2,813.51x = 6,036,123.01
  5. Step 5: Solve for x
    x = 6,036,123.01/2,813.51
  6. Step 6: Final answer
    x = 2,145.40

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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.