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Finding the Fourth Proportional to 5,808.72, 8,712.87 and 1,648.71

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Solution

The fourth proportional to 5,808.72, 8,712.87 and 1,648.71 is: 2,473.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,808.72 : 8,712.87 = 1,648.71 : x
  2. Step 2: Convert to fraction form
    5,808.72/8,712.87 = 1,648.71/x
  3. Step 3: Cross multiply
    5,808.72x = 8,712.87 × 1,648.71
  4. Step 4: Simplify right side
    5,808.72x = 14,364,987.65
  5. Step 5: Solve for x
    x = 14,364,987.65/5,808.72
  6. Step 6: Final answer
    x = 2,473.01

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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.