Home / 5,820.05-8,715.40-2,890.69

Finding the Fourth Proportional to 5,820.05, 8,715.40 and 2,890.69

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Solution

The fourth proportional to 5,820.05, 8,715.40 and 2,890.69 is: 4,328.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,820.05 : 8,715.40 = 2,890.69 : x
  2. Step 2: Convert to fraction form
    5,820.05/8,715.40 = 2,890.69/x
  3. Step 3: Cross multiply
    5,820.05x = 8,715.40 × 2,890.69
  4. Step 4: Simplify right side
    5,820.05x = 25,193,490.61
  5. Step 5: Solve for x
    x = 25,193,490.61/5,820.05
  6. Step 6: Final answer
    x = 4,328.74

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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.