Home / 2,235.76-3,085.96-1,489.45

Finding the Fourth Proportional to 2,235.76, 3,085.96 and 1,489.45

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Solution

The fourth proportional to 2,235.76, 3,085.96 and 1,489.45 is: 2,055.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,235.76 : 3,085.96 = 1,489.45 : x
  2. Step 2: Convert to fraction form
    2,235.76/3,085.96 = 1,489.45/x
  3. Step 3: Cross multiply
    2,235.76x = 3,085.96 × 1,489.45
  4. Step 4: Simplify right side
    2,235.76x = 4,596,383.12
  5. Step 5: Solve for x
    x = 4,596,383.12/2,235.76
  6. Step 6: Final answer
    x = 2,055.85

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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.