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Finding the Fourth Proportional to 2,125.77, 3,188.44 and 586.77

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Solution

The fourth proportional to 2,125.77, 3,188.44 and 586.77 is: 880.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.77 : 3,188.44 = 586.77 : x
  2. Step 2: Convert to fraction form
    2,125.77/3,188.44 = 586.77/x
  3. Step 3: Cross multiply
    2,125.77x = 3,188.44 × 586.77
  4. Step 4: Simplify right side
    2,125.77x = 1,870,880.94
  5. Step 5: Solve for x
    x = 1,870,880.94/2,125.77
  6. Step 6: Final answer
    x = 880.10

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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.