Home / 2,588.08-3,880.76-1,126.56

Finding the Fourth Proportional to 2,588.08, 3,880.76 and 1,126.56

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Solution

The fourth proportional to 2,588.08, 3,880.76 and 1,126.56 is: 1,689.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,588.08 : 3,880.76 = 1,126.56 : x
  2. Step 2: Convert to fraction form
    2,588.08/3,880.76 = 1,126.56/x
  3. Step 3: Cross multiply
    2,588.08x = 3,880.76 × 1,126.56
  4. Step 4: Simplify right side
    2,588.08x = 4,371,908.99
  5. Step 5: Solve for x
    x = 4,371,908.99/2,588.08
  6. Step 6: Final answer
    x = 1,689.25

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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.