Home / 2,386.56-3,580.80-926.16

Finding the Fourth Proportional to 2,386.56, 3,580.80 and 926.16

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Solution

The fourth proportional to 2,386.56, 3,580.80 and 926.16 is: 1,389.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.56 : 3,580.80 = 926.16 : x
  2. Step 2: Convert to fraction form
    2,386.56/3,580.80 = 926.16/x
  3. Step 3: Cross multiply
    2,386.56x = 3,580.80 × 926.16
  4. Step 4: Simplify right side
    2,386.56x = 3,316,393.73
  5. Step 5: Solve for x
    x = 3,316,393.73/2,386.56
  6. Step 6: Final answer
    x = 1,389.61

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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.