Home / 4,155.96-5,731.28-3,210.24

Finding the Fourth Proportional to 4,155.96, 5,731.28 and 3,210.24

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Solution

The fourth proportional to 4,155.96, 5,731.28 and 3,210.24 is: 4,427.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,155.96 : 5,731.28 = 3,210.24 : x
  2. Step 2: Convert to fraction form
    4,155.96/5,731.28 = 3,210.24/x
  3. Step 3: Cross multiply
    4,155.96x = 5,731.28 × 3,210.24
  4. Step 4: Simplify right side
    4,155.96x = 18,398,784.31
  5. Step 5: Solve for x
    x = 18,398,784.31/4,155.96
  6. Step 6: Final answer
    x = 4,427.08

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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.