Home / 7,018.16-9,681.75-4,183.91

Finding the Fourth Proportional to 7,018.16, 9,681.75 and 4,183.91

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Solution

The fourth proportional to 7,018.16, 9,681.75 and 4,183.91 is: 5,771.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,018.16 : 9,681.75 = 4,183.91 : x
  2. Step 2: Convert to fraction form
    7,018.16/9,681.75 = 4,183.91/x
  3. Step 3: Cross multiply
    7,018.16x = 9,681.75 × 4,183.91
  4. Step 4: Simplify right side
    7,018.16x = 40,507,570.64
  5. Step 5: Solve for x
    x = 40,507,570.64/7,018.16
  6. Step 6: Final answer
    x = 5,771.82

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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.