Home / 2,369.28-3,271.52-2,120.16

Finding the Fourth Proportional to 2,369.28, 3,271.52 and 2,120.16

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Solution

The fourth proportional to 2,369.28, 3,271.52 and 2,120.16 is: 2,927.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,369.28 : 3,271.52 = 2,120.16 : x
  2. Step 2: Convert to fraction form
    2,369.28/3,271.52 = 2,120.16/x
  3. Step 3: Cross multiply
    2,369.28x = 3,271.52 × 2,120.16
  4. Step 4: Simplify right side
    2,369.28x = 6,936,145.84
  5. Step 5: Solve for x
    x = 6,936,145.84/2,369.28
  6. Step 6: Final answer
    x = 2,927.53

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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.