Home / 2,235.56-3,085.26-1,291.52

Finding the Fourth Proportional to 2,235.56, 3,085.26 and 1,291.52

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Solution

The fourth proportional to 2,235.56, 3,085.26 and 1,291.52 is: 1,782.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,235.56 : 3,085.26 = 1,291.52 : x
  2. Step 2: Convert to fraction form
    2,235.56/3,085.26 = 1,291.52/x
  3. Step 3: Cross multiply
    2,235.56x = 3,085.26 × 1,291.52
  4. Step 4: Simplify right side
    2,235.56x = 3,984,675.00
  5. Step 5: Solve for x
    x = 3,984,675.00/2,235.56
  6. Step 6: Final answer
    x = 1,782.41

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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.