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Finding the Fourth Proportional to 6,349.71, 8,762.49 and 3,555.21

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Solution

The fourth proportional to 6,349.71, 8,762.49 and 3,555.21 is: 4,906.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,349.71 : 8,762.49 = 3,555.21 : x
  2. Step 2: Convert to fraction form
    6,349.71/8,762.49 = 3,555.21/x
  3. Step 3: Cross multiply
    6,349.71x = 8,762.49 × 3,555.21
  4. Step 4: Simplify right side
    6,349.71x = 31,152,492.07
  5. Step 5: Solve for x
    x = 31,152,492.07/6,349.71
  6. Step 6: Final answer
    x = 4,906.13

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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.