Home / 1,511.54-2,275.68-1,184.23

Finding the Fourth Proportional to 1,511.54, 2,275.68 and 1,184.23

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Solution

The fourth proportional to 1,511.54, 2,275.68 and 1,184.23 is: 1,782.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.54 : 2,275.68 = 1,184.23 : x
  2. Step 2: Convert to fraction form
    1,511.54/2,275.68 = 1,184.23/x
  3. Step 3: Cross multiply
    1,511.54x = 2,275.68 × 1,184.23
  4. Step 4: Simplify right side
    1,511.54x = 2,694,928.53
  5. Step 5: Solve for x
    x = 2,694,928.53/1,511.54
  6. Step 6: Final answer
    x = 1,782.90

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Half scale
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Double scale
Find fourth proportional to 1,512.54, 2,277.19 and 1,185.23
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.