Home / 2,653.38-3,979.55-2,521.67

Finding the Fourth Proportional to 2,653.38, 3,979.55 and 2,521.67

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Solution

The fourth proportional to 2,653.38, 3,979.55 and 2,521.67 is: 3,782.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,653.38 : 3,979.55 = 2,521.67 : x
  2. Step 2: Convert to fraction form
    2,653.38/3,979.55 = 2,521.67/x
  3. Step 3: Cross multiply
    2,653.38x = 3,979.55 × 2,521.67
  4. Step 4: Simplify right side
    2,653.38x = 10,035,113.18
  5. Step 5: Solve for x
    x = 10,035,113.18/2,653.38
  6. Step 6: Final answer
    x = 3,782.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.