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Finding the Fourth Proportional to 3,661.94, 5,492.90 and 1,715.50

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Solution

The fourth proportional to 3,661.94, 5,492.90 and 1,715.50 is: 2,573.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,661.94 : 5,492.90 = 1,715.50 : x
  2. Step 2: Convert to fraction form
    3,661.94/5,492.90 = 1,715.50/x
  3. Step 3: Cross multiply
    3,661.94x = 5,492.90 × 1,715.50
  4. Step 4: Simplify right side
    3,661.94x = 9,423,069.95
  5. Step 5: Solve for x
    x = 9,423,069.95/3,661.94
  6. Step 6: Final answer
    x = 2,573.25

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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.