Home / 1,605.60-2,215.98-1,163.34

Finding the Fourth Proportional to 1,605.60, 2,215.98 and 1,163.34

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Solution

The fourth proportional to 1,605.60, 2,215.98 and 1,163.34 is: 1,605.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605.60 : 2,215.98 = 1,163.34 : x
  2. Step 2: Convert to fraction form
    1,605.60/2,215.98 = 1,163.34/x
  3. Step 3: Cross multiply
    1,605.60x = 2,215.98 × 1,163.34
  4. Step 4: Simplify right side
    1,605.60x = 2,577,938.17
  5. Step 5: Solve for x
    x = 2,577,938.17/1,605.60
  6. Step 6: Final answer
    x = 1,605.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.