Home / 1,620.11-2,430.16-450.06

Finding the Fourth Proportional to 1,620.11, 2,430.16 and 450.06

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Solution

The fourth proportional to 1,620.11, 2,430.16 and 450.06 is: 675.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620.11 : 2,430.16 = 450.06 : x
  2. Step 2: Convert to fraction form
    1,620.11/2,430.16 = 450.06/x
  3. Step 3: Cross multiply
    1,620.11x = 2,430.16 × 450.06
  4. Step 4: Simplify right side
    1,620.11x = 1,093,731.24
  5. Step 5: Solve for x
    x = 1,093,731.24/1,620.11
  6. Step 6: Final answer
    x = 675.10

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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.