Home / 5,161.48-7,742.18-1,698.72

Finding the Fourth Proportional to 5,161.48, 7,742.18 and 1,698.72

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Solution

The fourth proportional to 5,161.48, 7,742.18 and 1,698.72 is: 2,548.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.48 : 7,742.18 = 1,698.72 : x
  2. Step 2: Convert to fraction form
    5,161.48/7,742.18 = 1,698.72/x
  3. Step 3: Cross multiply
    5,161.48x = 7,742.18 × 1,698.72
  4. Step 4: Simplify right side
    5,161.48x = 13,151,796.01
  5. Step 5: Solve for x
    x = 13,151,796.01/5,161.48
  6. Step 6: Final answer
    x = 2,548.07

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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.