Home / 1,511.55-2,085.97-848.45

Finding the Fourth Proportional to 1,511.55, 2,085.97 and 848.45

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Solution

The fourth proportional to 1,511.55, 2,085.97 and 848.45 is: 1,170.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.55 : 2,085.97 = 848.45 : x
  2. Step 2: Convert to fraction form
    1,511.55/2,085.97 = 848.45/x
  3. Step 3: Cross multiply
    1,511.55x = 2,085.97 × 848.45
  4. Step 4: Simplify right side
    1,511.55x = 1,769,841.25
  5. Step 5: Solve for x
    x = 1,769,841.25/1,511.55
  6. Step 6: Final answer
    x = 1,170.88

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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.