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Finding the Fourth Proportional to 3,522.68, 4,861.74 and 2,681.90

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Solution

The fourth proportional to 3,522.68, 4,861.74 and 2,681.90 is: 3,701.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,522.68 : 4,861.74 = 2,681.90 : x
  2. Step 2: Convert to fraction form
    3,522.68/4,861.74 = 2,681.90/x
  3. Step 3: Cross multiply
    3,522.68x = 4,861.74 × 2,681.90
  4. Step 4: Simplify right side
    3,522.68x = 13,038,700.51
  5. Step 5: Solve for x
    x = 13,038,700.51/3,522.68
  6. Step 6: Final answer
    x = 3,701.36

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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.