Home / 7,146.72-10,721.10-2,465.49

Finding the Fourth Proportional to 7,146.72, 10,721.10 and 2,465.49

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Solution

The fourth proportional to 7,146.72, 10,721.10 and 2,465.49 is: 3,698.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.72 : 10,721.10 = 2,465.49 : x
  2. Step 2: Convert to fraction form
    7,146.72/10,721.10 = 2,465.49/x
  3. Step 3: Cross multiply
    7,146.72x = 10,721.10 × 2,465.49
  4. Step 4: Simplify right side
    7,146.72x = 26,432,764.84
  5. Step 5: Solve for x
    x = 26,432,764.84/7,146.72
  6. Step 6: Final answer
    x = 3,698.59

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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.