Home / 2,087.24-2,880.28-1,142.99

Finding the Fourth Proportional to 2,087.24, 2,880.28 and 1,142.99

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Solution

The fourth proportional to 2,087.24, 2,880.28 and 1,142.99 is: 1,577.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.24 : 2,880.28 = 1,142.99 : x
  2. Step 2: Convert to fraction form
    2,087.24/2,880.28 = 1,142.99/x
  3. Step 3: Cross multiply
    2,087.24x = 2,880.28 × 1,142.99
  4. Step 4: Simplify right side
    2,087.24x = 3,292,131.24
  5. Step 5: Solve for x
    x = 3,292,131.24/2,087.24
  6. Step 6: Final answer
    x = 1,577.27

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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.