Home / 3,492.10-5,238.15-2,109.70

Finding the Fourth Proportional to 3,492.10, 5,238.15 and 2,109.70

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Solution

The fourth proportional to 3,492.10, 5,238.15 and 2,109.70 is: 3,164.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,492.10 : 5,238.15 = 2,109.70 : x
  2. Step 2: Convert to fraction form
    3,492.10/5,238.15 = 2,109.70/x
  3. Step 3: Cross multiply
    3,492.10x = 5,238.15 × 2,109.70
  4. Step 4: Simplify right side
    3,492.10x = 11,050,925.06
  5. Step 5: Solve for x
    x = 11,050,925.06/3,492.10
  6. Step 6: Final answer
    x = 3,164.55

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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.