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Finding the Fourth Proportional to 1,669.62, 2,304.95 and 1,559.19

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Solution

The fourth proportional to 1,669.62, 2,304.95 and 1,559.19 is: 2,152.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.62 : 2,304.95 = 1,559.19 : x
  2. Step 2: Convert to fraction form
    1,669.62/2,304.95 = 1,559.19/x
  3. Step 3: Cross multiply
    1,669.62x = 2,304.95 × 1,559.19
  4. Step 4: Simplify right side
    1,669.62x = 3,593,847.19
  5. Step 5: Solve for x
    x = 3,593,847.19/1,669.62
  6. Step 6: Final answer
    x = 2,152.49

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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.