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Finding the Fourth Proportional to 4,676.09, 7,014.15 and 1,389.47

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Solution

The fourth proportional to 4,676.09, 7,014.15 and 1,389.47 is: 2,084.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,676.09 : 7,014.15 = 1,389.47 : x
  2. Step 2: Convert to fraction form
    4,676.09/7,014.15 = 1,389.47/x
  3. Step 3: Cross multiply
    4,676.09x = 7,014.15 × 1,389.47
  4. Step 4: Simplify right side
    4,676.09x = 9,745,915.93
  5. Step 5: Solve for x
    x = 9,745,915.93/4,676.09
  6. Step 6: Final answer
    x = 2,084.20

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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.