Home / 1,629.90-2,444.85-397.31

Finding the Fourth Proportional to 1,629.90, 2,444.85 and 397.31

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Solution

The fourth proportional to 1,629.90, 2,444.85 and 397.31 is: 595.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.90 : 2,444.85 = 397.31 : x
  2. Step 2: Convert to fraction form
    1,629.90/2,444.85 = 397.31/x
  3. Step 3: Cross multiply
    1,629.90x = 2,444.85 × 397.31
  4. Step 4: Simplify right side
    1,629.90x = 971,363.35
  5. Step 5: Solve for x
    x = 971,363.35/1,629.90
  6. Step 6: Final answer
    x = 595.97

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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.