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Finding the Fourth Proportional to 3,312.35, 4,968.35 and 847.08

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Solution

The fourth proportional to 3,312.35, 4,968.35 and 847.08 is: 1,270.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.35 : 4,968.35 = 847.08 : x
  2. Step 2: Convert to fraction form
    3,312.35/4,968.35 = 847.08/x
  3. Step 3: Cross multiply
    3,312.35x = 4,968.35 × 847.08
  4. Step 4: Simplify right side
    3,312.35x = 4,208,585.68
  5. Step 5: Solve for x
    x = 4,208,585.68/3,312.35
  6. Step 6: Final answer
    x = 1,270.58

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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.