Home / 2,386.61-3,580.50-1,928.54

Finding the Fourth Proportional to 2,386.61, 3,580.50 and 1,928.54

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Solution

The fourth proportional to 2,386.61, 3,580.50 and 1,928.54 is: 2,893.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.61 : 3,580.50 = 1,928.54 : x
  2. Step 2: Convert to fraction form
    2,386.61/3,580.50 = 1,928.54/x
  3. Step 3: Cross multiply
    2,386.61x = 3,580.50 × 1,928.54
  4. Step 4: Simplify right side
    2,386.61x = 6,905,137.47
  5. Step 5: Solve for x
    x = 6,905,137.47/2,386.61
  6. Step 6: Final answer
    x = 2,893.28

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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.