Home / 5,210.34-7,190.28-2,820.32

Finding the Fourth Proportional to 5,210.34, 7,190.28 and 2,820.32

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Solution

The fourth proportional to 5,210.34, 7,190.28 and 2,820.32 is: 3,892.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.34 : 7,190.28 = 2,820.32 : x
  2. Step 2: Convert to fraction form
    5,210.34/7,190.28 = 2,820.32/x
  3. Step 3: Cross multiply
    5,210.34x = 7,190.28 × 2,820.32
  4. Step 4: Simplify right side
    5,210.34x = 20,278,854.54
  5. Step 5: Solve for x
    x = 20,278,854.54/5,210.34
  6. Step 6: Final answer
    x = 3,892.04

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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.