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Finding the Fourth Proportional to 3,492.85, 4,820.11 and 1,899.45

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Solution

The fourth proportional to 3,492.85, 4,820.11 and 1,899.45 is: 2,621.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,492.85 : 4,820.11 = 1,899.45 : x
  2. Step 2: Convert to fraction form
    3,492.85/4,820.11 = 1,899.45/x
  3. Step 3: Cross multiply
    3,492.85x = 4,820.11 × 1,899.45
  4. Step 4: Simplify right side
    3,492.85x = 9,155,553.19
  5. Step 5: Solve for x
    x = 9,155,553.19/3,492.85
  6. Step 6: Final answer
    x = 2,621.23

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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.