Home / 7,145.54-9,859.66-4,491.06

Finding the Fourth Proportional to 7,145.54, 9,859.66 and 4,491.06

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Solution

The fourth proportional to 7,145.54, 9,859.66 and 4,491.06 is: 6,196.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.54 : 9,859.66 = 4,491.06 : x
  2. Step 2: Convert to fraction form
    7,145.54/9,859.66 = 4,491.06/x
  3. Step 3: Cross multiply
    7,145.54x = 9,859.66 × 4,491.06
  4. Step 4: Simplify right side
    7,145.54x = 44,280,324.64
  5. Step 5: Solve for x
    x = 44,280,324.64/7,145.54
  6. Step 6: Final answer
    x = 6,196.92

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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.