Home / 1,583.87-2,186.24-1,087.20

Finding the Fourth Proportional to 1,583.87, 2,186.24 and 1,087.20

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Solution

The fourth proportional to 1,583.87, 2,186.24 and 1,087.20 is: 1,500.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,583.87 : 2,186.24 = 1,087.20 : x
  2. Step 2: Convert to fraction form
    1,583.87/2,186.24 = 1,087.20/x
  3. Step 3: Cross multiply
    1,583.87x = 2,186.24 × 1,087.20
  4. Step 4: Simplify right side
    1,583.87x = 2,376,874.69
  5. Step 5: Solve for x
    x = 2,376,874.69/1,583.87
  6. Step 6: Final answer
    x = 1,500.68

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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.