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Finding the Fourth Proportional to 3,527.81, 4,868.02 and 2,111.21

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Solution

The fourth proportional to 3,527.81, 4,868.02 and 2,111.21 is: 2,913.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,527.81 : 4,868.02 = 2,111.21 : x
  2. Step 2: Convert to fraction form
    3,527.81/4,868.02 = 2,111.21/x
  3. Step 3: Cross multiply
    3,527.81x = 4,868.02 × 2,111.21
  4. Step 4: Simplify right side
    3,527.81x = 10,277,412.50
  5. Step 5: Solve for x
    x = 10,277,412.50/3,527.81
  6. Step 6: Final answer
    x = 2,913.26

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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.