Home / 1,586.07-2,187.32-1,087.83

Finding the Fourth Proportional to 1,586.07, 2,187.32 and 1,087.83

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Solution

The fourth proportional to 1,586.07, 2,187.32 and 1,087.83 is: 1,500.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586.07 : 2,187.32 = 1,087.83 : x
  2. Step 2: Convert to fraction form
    1,586.07/2,187.32 = 1,087.83/x
  3. Step 3: Cross multiply
    1,586.07x = 2,187.32 × 1,087.83
  4. Step 4: Simplify right side
    1,586.07x = 2,379,426.88
  5. Step 5: Solve for x
    x = 2,379,426.88/1,586.07
  6. Step 6: Final answer
    x = 1,500.20

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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.