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Finding the Fourth Proportional to 2,420.99, 3,624.96 and 1,264.31

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Solution

The fourth proportional to 2,420.99, 3,624.96 and 1,264.31 is: 1,893.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.99 : 3,624.96 = 1,264.31 : x
  2. Step 2: Convert to fraction form
    2,420.99/3,624.96 = 1,264.31/x
  3. Step 3: Cross multiply
    2,420.99x = 3,624.96 × 1,264.31
  4. Step 4: Simplify right side
    2,420.99x = 4,583,073.18
  5. Step 5: Solve for x
    x = 4,583,073.18/2,420.99
  6. Step 6: Final answer
    x = 1,893.06

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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.