Home / 3,785.81-5,222.27-2,386.13

Finding the Fourth Proportional to 3,785.81, 5,222.27 and 2,386.13

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Solution

The fourth proportional to 3,785.81, 5,222.27 and 2,386.13 is: 3,291.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.81 : 5,222.27 = 2,386.13 : x
  2. Step 2: Convert to fraction form
    3,785.81/5,222.27 = 2,386.13/x
  3. Step 3: Cross multiply
    3,785.81x = 5,222.27 × 2,386.13
  4. Step 4: Simplify right side
    3,785.81x = 12,460,994.97
  5. Step 5: Solve for x
    x = 12,460,994.97/3,785.81
  6. Step 6: Final answer
    x = 3,291.50

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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.