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Finding the Fourth Proportional to 2,072.59, 3,108.48 and 946.99

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Solution

The fourth proportional to 2,072.59, 3,108.48 and 946.99 is: 1,420.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072.59 : 3,108.48 = 946.99 : x
  2. Step 2: Convert to fraction form
    2,072.59/3,108.48 = 946.99/x
  3. Step 3: Cross multiply
    2,072.59x = 3,108.48 × 946.99
  4. Step 4: Simplify right side
    2,072.59x = 2,943,699.81
  5. Step 5: Solve for x
    x = 2,943,699.81/2,072.59
  6. Step 6: Final answer
    x = 1,420.30

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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.