Home / 2,068.75-2,854.88-1,137.25

Finding the Fourth Proportional to 2,068.75, 2,854.88 and 1,137.25

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Solution

The fourth proportional to 2,068.75, 2,854.88 and 1,137.25 is: 1,569.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,068.75 : 2,854.88 = 1,137.25 : x
  2. Step 2: Convert to fraction form
    2,068.75/2,854.88 = 1,137.25/x
  3. Step 3: Cross multiply
    2,068.75x = 2,854.88 × 1,137.25
  4. Step 4: Simplify right side
    2,068.75x = 3,246,712.28
  5. Step 5: Solve for x
    x = 3,246,712.28/2,068.75
  6. Step 6: Final answer
    x = 1,569.41

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Half scale
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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.