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Finding the Fourth Proportional to 1,758.62, 2,425.29 and 1,509.86

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Solution

The fourth proportional to 1,758.62, 2,425.29 and 1,509.86 is: 2,082.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,758.62 : 2,425.29 = 1,509.86 : x
  2. Step 2: Convert to fraction form
    1,758.62/2,425.29 = 1,509.86/x
  3. Step 3: Cross multiply
    1,758.62x = 2,425.29 × 1,509.86
  4. Step 4: Simplify right side
    1,758.62x = 3,661,848.36
  5. Step 5: Solve for x
    x = 3,661,848.36/1,758.62
  6. Step 6: Final answer
    x = 2,082.23

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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.