Home / 1,511.91-2,085.44-1,064.75

Finding the Fourth Proportional to 1,511.91, 2,085.44 and 1,064.75

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Solution

The fourth proportional to 1,511.91, 2,085.44 and 1,064.75 is: 1,468.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.91 : 2,085.44 = 1,064.75 : x
  2. Step 2: Convert to fraction form
    1,511.91/2,085.44 = 1,064.75/x
  3. Step 3: Cross multiply
    1,511.91x = 2,085.44 × 1,064.75
  4. Step 4: Simplify right side
    1,511.91x = 2,220,456.49
  5. Step 5: Solve for x
    x = 2,220,456.49/1,511.91
  6. Step 6: Final answer
    x = 1,468.64

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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.