Home / 3,128.81-4,686.27-2,248.66

Finding the Fourth Proportional to 3,128.81, 4,686.27 and 2,248.66

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Solution

The fourth proportional to 3,128.81, 4,686.27 and 2,248.66 is: 3,368.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.81 : 4,686.27 = 2,248.66 : x
  2. Step 2: Convert to fraction form
    3,128.81/4,686.27 = 2,248.66/x
  3. Step 3: Cross multiply
    3,128.81x = 4,686.27 × 2,248.66
  4. Step 4: Simplify right side
    3,128.81x = 10,537,837.97
  5. Step 5: Solve for x
    x = 10,537,837.97/3,128.81
  6. Step 6: Final answer
    x = 3,368.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.