Home / 2,087.03-2,880.11-1,129.95

Finding the Fourth Proportional to 2,087.03, 2,880.11 and 1,129.95

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Solution

The fourth proportional to 2,087.03, 2,880.11 and 1,129.95 is: 1,559.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.03 : 2,880.11 = 1,129.95 : x
  2. Step 2: Convert to fraction form
    2,087.03/2,880.11 = 1,129.95/x
  3. Step 3: Cross multiply
    2,087.03x = 2,880.11 × 1,129.95
  4. Step 4: Simplify right side
    2,087.03x = 3,254,377.47
  5. Step 5: Solve for x
    x = 3,254,377.47/2,087.03
  6. Step 6: Final answer
    x = 1,559.33

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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.