Home / 3,509.44-5,262.72-1,317.76

Finding the Fourth Proportional to 3,509.44, 5,262.72 and 1,317.76

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Solution

The fourth proportional to 3,509.44, 5,262.72 and 1,317.76 is: 1,976.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,509.44 : 5,262.72 = 1,317.76 : x
  2. Step 2: Convert to fraction form
    3,509.44/5,262.72 = 1,317.76/x
  3. Step 3: Cross multiply
    3,509.44x = 5,262.72 × 1,317.76
  4. Step 4: Simplify right side
    3,509.44x = 6,935,001.91
  5. Step 5: Solve for x
    x = 6,935,001.91/3,509.44
  6. Step 6: Final answer
    x = 1,976.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.