Home / 2,554.81-3,813.56-2,191.93

Finding the Fourth Proportional to 2,554.81, 3,813.56 and 2,191.93

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Solution

The fourth proportional to 2,554.81, 3,813.56 and 2,191.93 is: 3,271.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,554.81 : 3,813.56 = 2,191.93 : x
  2. Step 2: Convert to fraction form
    2,554.81/3,813.56 = 2,191.93/x
  3. Step 3: Cross multiply
    2,554.81x = 3,813.56 × 2,191.93
  4. Step 4: Simplify right side
    2,554.81x = 8,359,056.63
  5. Step 5: Solve for x
    x = 8,359,056.63/2,554.81
  6. Step 6: Final answer
    x = 3,271.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.