Home / 8,285.90-12,428.37-2,045.93

Finding the Fourth Proportional to 8,285.90, 12,428.37 and 2,045.93

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Solution

The fourth proportional to 8,285.90, 12,428.37 and 2,045.93 is: 3,068.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,285.90 : 12,428.37 = 2,045.93 : x
  2. Step 2: Convert to fraction form
    8,285.90/12,428.37 = 2,045.93/x
  3. Step 3: Cross multiply
    8,285.90x = 12,428.37 × 2,045.93
  4. Step 4: Simplify right side
    8,285.90x = 25,427,512.89
  5. Step 5: Solve for x
    x = 25,427,512.89/8,285.90
  6. Step 6: Final answer
    x = 3,068.77

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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.