Home / 3,631.16-5,430.34-2,798.12

Finding the Fourth Proportional to 3,631.16, 5,430.34 and 2,798.12

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Solution

The fourth proportional to 3,631.16, 5,430.34 and 2,798.12 is: 4,184.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.16 : 5,430.34 = 2,798.12 : x
  2. Step 2: Convert to fraction form
    3,631.16/5,430.34 = 2,798.12/x
  3. Step 3: Cross multiply
    3,631.16x = 5,430.34 × 2,798.12
  4. Step 4: Simplify right side
    3,631.16x = 15,194,742.96
  5. Step 5: Solve for x
    x = 15,194,742.96/3,631.16
  6. Step 6: Final answer
    x = 4,184.54

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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.