Home / 3,215.48-4,437.66-1,956.24

Finding the Fourth Proportional to 3,215.48, 4,437.66 and 1,956.24

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Solution

The fourth proportional to 3,215.48, 4,437.66 and 1,956.24 is: 2,699.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.48 : 4,437.66 = 1,956.24 : x
  2. Step 2: Convert to fraction form
    3,215.48/4,437.66 = 1,956.24/x
  3. Step 3: Cross multiply
    3,215.48x = 4,437.66 × 1,956.24
  4. Step 4: Simplify right side
    3,215.48x = 8,681,128.00
  5. Step 5: Solve for x
    x = 8,681,128.00/3,215.48
  6. Step 6: Final answer
    x = 2,699.80

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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.