Home / 3,720.23-5,134.19-2,126.93

Finding the Fourth Proportional to 3,720.23, 5,134.19 and 2,126.93

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Solution

The fourth proportional to 3,720.23, 5,134.19 and 2,126.93 is: 2,935.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.23 : 5,134.19 = 2,126.93 : x
  2. Step 2: Convert to fraction form
    3,720.23/5,134.19 = 2,126.93/x
  3. Step 3: Cross multiply
    3,720.23x = 5,134.19 × 2,126.93
  4. Step 4: Simplify right side
    3,720.23x = 10,920,052.10
  5. Step 5: Solve for x
    x = 10,920,052.10/3,720.23
  6. Step 6: Final answer
    x = 2,935.32

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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.