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Finding the Fourth Proportional to 5,328.09, 7,992.14 and 1,630.30

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Solution

The fourth proportional to 5,328.09, 7,992.14 and 1,630.30 is: 2,445.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,328.09 : 7,992.14 = 1,630.30 : x
  2. Step 2: Convert to fraction form
    5,328.09/7,992.14 = 1,630.30/x
  3. Step 3: Cross multiply
    5,328.09x = 7,992.14 × 1,630.30
  4. Step 4: Simplify right side
    5,328.09x = 13,029,585.84
  5. Step 5: Solve for x
    x = 13,029,585.84/5,328.09
  6. Step 6: Final answer
    x = 2,445.45

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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.