Home / 3,271.35-4,515.45-2,153.16

Finding the Fourth Proportional to 3,271.35, 4,515.45 and 2,153.16

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Solution

The fourth proportional to 3,271.35, 4,515.45 and 2,153.16 is: 2,972.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,271.35 : 4,515.45 = 2,153.16 : x
  2. Step 2: Convert to fraction form
    3,271.35/4,515.45 = 2,153.16/x
  3. Step 3: Cross multiply
    3,271.35x = 4,515.45 × 2,153.16
  4. Step 4: Simplify right side
    3,271.35x = 9,722,486.32
  5. Step 5: Solve for x
    x = 9,722,486.32/3,271.35
  6. Step 6: Final answer
    x = 2,972.01

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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.