Home / 6,580.50-9,875.62-3,117.76

Finding the Fourth Proportional to 6,580.50, 9,875.62 and 3,117.76

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Solution

The fourth proportional to 6,580.50, 9,875.62 and 3,117.76 is: 4,678.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,580.50 : 9,875.62 = 3,117.76 : x
  2. Step 2: Convert to fraction form
    6,580.50/9,875.62 = 3,117.76/x
  3. Step 3: Cross multiply
    6,580.50x = 9,875.62 × 3,117.76
  4. Step 4: Simplify right side
    6,580.50x = 30,789,813.01
  5. Step 5: Solve for x
    x = 30,789,813.01/6,580.50
  6. Step 6: Final answer
    x = 4,678.95

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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.