Home / 3,720.02-5,130.72-2,227.64

Finding the Fourth Proportional to 3,720.02, 5,130.72 and 2,227.64

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Solution

The fourth proportional to 3,720.02, 5,130.72 and 2,227.64 is: 3,072.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.02 : 5,130.72 = 2,227.64 : x
  2. Step 2: Convert to fraction form
    3,720.02/5,130.72 = 2,227.64/x
  3. Step 3: Cross multiply
    3,720.02x = 5,130.72 × 2,227.64
  4. Step 4: Simplify right side
    3,720.02x = 11,429,371.45
  5. Step 5: Solve for x
    x = 11,429,371.45/3,720.02
  6. Step 6: Final answer
    x = 3,072.40

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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.