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Finding the Fourth Proportional to 2,658.91, 3,987.03 and 1,548.69

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Solution

The fourth proportional to 2,658.91, 3,987.03 and 1,548.69 is: 2,322.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658.91 : 3,987.03 = 1,548.69 : x
  2. Step 2: Convert to fraction form
    2,658.91/3,987.03 = 1,548.69/x
  3. Step 3: Cross multiply
    2,658.91x = 3,987.03 × 1,548.69
  4. Step 4: Simplify right side
    2,658.91x = 6,174,678.06
  5. Step 5: Solve for x
    x = 6,174,678.06/2,658.91
  6. Step 6: Final answer
    x = 2,322.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.