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Finding the Fourth Proportional to 2,609.70, 3,599.37 and 1,560.66

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Solution

The fourth proportional to 2,609.70, 3,599.37 and 1,560.66 is: 2,152.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,609.70 : 3,599.37 = 1,560.66 : x
  2. Step 2: Convert to fraction form
    2,609.70/3,599.37 = 1,560.66/x
  3. Step 3: Cross multiply
    2,609.70x = 3,599.37 × 1,560.66
  4. Step 4: Simplify right side
    2,609.70x = 5,617,392.78
  5. Step 5: Solve for x
    x = 5,617,392.78/2,609.70
  6. Step 6: Final answer
    x = 2,152.51

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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.