Home / 1,623.56-2,435.40-469.40

Finding the Fourth Proportional to 1,623.56, 2,435.40 and 469.40

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Solution

The fourth proportional to 1,623.56, 2,435.40 and 469.40 is: 704.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,623.56 : 2,435.40 = 469.40 : x
  2. Step 2: Convert to fraction form
    1,623.56/2,435.40 = 469.40/x
  3. Step 3: Cross multiply
    1,623.56x = 2,435.40 × 469.40
  4. Step 4: Simplify right side
    1,623.56x = 1,143,176.76
  5. Step 5: Solve for x
    x = 1,143,176.76/1,623.56
  6. Step 6: Final answer
    x = 704.12

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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.