Home / 5,430.13-7,493.58-3,072.22

Finding the Fourth Proportional to 5,430.13, 7,493.58 and 3,072.22

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Solution

The fourth proportional to 5,430.13, 7,493.58 and 3,072.22 is: 4,239.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.13 : 7,493.58 = 3,072.22 : x
  2. Step 2: Convert to fraction form
    5,430.13/7,493.58 = 3,072.22/x
  3. Step 3: Cross multiply
    5,430.13x = 7,493.58 × 3,072.22
  4. Step 4: Simplify right side
    5,430.13x = 23,021,888.88
  5. Step 5: Solve for x
    x = 23,021,888.88/5,430.13
  6. Step 6: Final answer
    x = 4,239.66

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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.