Home / 5,381.88-7,430.63-4,812.96

Finding the Fourth Proportional to 5,381.88, 7,430.63 and 4,812.96

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Solution

The fourth proportional to 5,381.88, 7,430.63 and 4,812.96 is: 6,645.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.88 : 7,430.63 = 4,812.96 : x
  2. Step 2: Convert to fraction form
    5,381.88/7,430.63 = 4,812.96/x
  3. Step 3: Cross multiply
    5,381.88x = 7,430.63 × 4,812.96
  4. Step 4: Simplify right side
    5,381.88x = 35,763,284.98
  5. Step 5: Solve for x
    x = 35,763,284.98/5,381.88
  6. Step 6: Final answer
    x = 6,645.12

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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.