Home / 3,785.48-5,223.40-2,170.16

Finding the Fourth Proportional to 3,785.48, 5,223.40 and 2,170.16

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Solution

The fourth proportional to 3,785.48, 5,223.40 and 2,170.16 is: 2,994.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.48 : 5,223.40 = 2,170.16 : x
  2. Step 2: Convert to fraction form
    3,785.48/5,223.40 = 2,170.16/x
  3. Step 3: Cross multiply
    3,785.48x = 5,223.40 × 2,170.16
  4. Step 4: Simplify right side
    3,785.48x = 11,335,621.38
  5. Step 5: Solve for x
    x = 11,335,621.38/3,785.48
  6. Step 6: Final answer
    x = 2,994.50

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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.