Home / 5,212.43-7,810.80-3,130.16

Finding the Fourth Proportional to 5,212.43, 7,810.80 and 3,130.16

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Solution

The fourth proportional to 5,212.43, 7,810.80 and 3,130.16 is: 4,690.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.43 : 7,810.80 = 3,130.16 : x
  2. Step 2: Convert to fraction form
    5,212.43/7,810.80 = 3,130.16/x
  3. Step 3: Cross multiply
    5,212.43x = 7,810.80 × 3,130.16
  4. Step 4: Simplify right side
    5,212.43x = 24,449,053.73
  5. Step 5: Solve for x
    x = 24,449,053.73/5,212.43
  6. Step 6: Final answer
    x = 4,690.53

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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.