Home / 5,020.50-6,928.29-2,812.50

Finding the Fourth Proportional to 5,020.50, 6,928.29 and 2,812.50

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Solution

The fourth proportional to 5,020.50, 6,928.29 and 2,812.50 is: 3,881.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,020.50 : 6,928.29 = 2,812.50 : x
  2. Step 2: Convert to fraction form
    5,020.50/6,928.29 = 2,812.50/x
  3. Step 3: Cross multiply
    5,020.50x = 6,928.29 × 2,812.50
  4. Step 4: Simplify right side
    5,020.50x = 19,485,815.63
  5. Step 5: Solve for x
    x = 19,485,815.63/5,020.50
  6. Step 6: Final answer
    x = 3,881.25

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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.