Home / 1,605.90-2,397.24-1,485.66

Finding the Fourth Proportional to 1,605.90, 2,397.24 and 1,485.66

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Solution

The fourth proportional to 1,605.90, 2,397.24 and 1,485.66 is: 2,217.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605.90 : 2,397.24 = 1,485.66 : x
  2. Step 2: Convert to fraction form
    1,605.90/2,397.24 = 1,485.66/x
  3. Step 3: Cross multiply
    1,605.90x = 2,397.24 × 1,485.66
  4. Step 4: Simplify right side
    1,605.90x = 3,561,483.58
  5. Step 5: Solve for x
    x = 3,561,483.58/1,605.90
  6. Step 6: Final answer
    x = 2,217.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.