Home / 7,138.32-10,707.51-2,521.32

Finding the Fourth Proportional to 7,138.32, 10,707.51 and 2,521.32

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Solution

The fourth proportional to 7,138.32, 10,707.51 and 2,521.32 is: 3,781.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138.32 : 10,707.51 = 2,521.32 : x
  2. Step 2: Convert to fraction form
    7,138.32/10,707.51 = 2,521.32/x
  3. Step 3: Cross multiply
    7,138.32x = 10,707.51 × 2,521.32
  4. Step 4: Simplify right side
    7,138.32x = 26,997,059.11
  5. Step 5: Solve for x
    x = 26,997,059.11/7,138.32
  6. Step 6: Final answer
    x = 3,781.99

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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.