Home / 5,210.63-7,190.67-2,852.72

Finding the Fourth Proportional to 5,210.63, 7,190.67 and 2,852.72

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Solution

The fourth proportional to 5,210.63, 7,190.67 and 2,852.72 is: 3,936.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.63 : 7,190.67 = 2,852.72 : x
  2. Step 2: Convert to fraction form
    5,210.63/7,190.67 = 2,852.72/x
  3. Step 3: Cross multiply
    5,210.63x = 7,190.67 × 2,852.72
  4. Step 4: Simplify right side
    5,210.63x = 20,512,969.83
  5. Step 5: Solve for x
    x = 20,512,969.83/5,210.63
  6. Step 6: Final answer
    x = 3,936.76

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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.