Home / 3,492.48-4,821.62-2,315.15

Finding the Fourth Proportional to 3,492.48, 4,821.62 and 2,315.15

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Solution

The fourth proportional to 3,492.48, 4,821.62 and 2,315.15 is: 3,196.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,492.48 : 4,821.62 = 2,315.15 : x
  2. Step 2: Convert to fraction form
    3,492.48/4,821.62 = 2,315.15/x
  3. Step 3: Cross multiply
    3,492.48x = 4,821.62 × 2,315.15
  4. Step 4: Simplify right side
    3,492.48x = 11,162,737.86
  5. Step 5: Solve for x
    x = 11,162,737.86/3,492.48
  6. Step 6: Final answer
    x = 3,196.22

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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.