Home / 1,511.56-2,085.84-848.30

Finding the Fourth Proportional to 1,511.56, 2,085.84 and 848.30

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Solution

The fourth proportional to 1,511.56, 2,085.84 and 848.30 is: 1,170.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.56 : 2,085.84 = 848.30 : x
  2. Step 2: Convert to fraction form
    1,511.56/2,085.84 = 848.30/x
  3. Step 3: Cross multiply
    1,511.56x = 2,085.84 × 848.30
  4. Step 4: Simplify right side
    1,511.56x = 1,769,418.07
  5. Step 5: Solve for x
    x = 1,769,418.07/1,511.56
  6. Step 6: Final answer
    x = 1,170.59

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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.