Home / 4,079.42-5,628.24-2,820.02

Finding the Fourth Proportional to 4,079.42, 5,628.24 and 2,820.02

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Solution

The fourth proportional to 4,079.42, 5,628.24 and 2,820.02 is: 3,890.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.42 : 5,628.24 = 2,820.02 : x
  2. Step 2: Convert to fraction form
    4,079.42/5,628.24 = 2,820.02/x
  3. Step 3: Cross multiply
    4,079.42x = 5,628.24 × 2,820.02
  4. Step 4: Simplify right side
    4,079.42x = 15,871,774.01
  5. Step 5: Solve for x
    x = 15,871,774.01/4,079.42
  6. Step 6: Final answer
    x = 3,890.69

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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.