Home / 5,870.87-8,806.85-2,123.59

Finding the Fourth Proportional to 5,870.87, 8,806.85 and 2,123.59

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Solution

The fourth proportional to 5,870.87, 8,806.85 and 2,123.59 is: 3,185.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,870.87 : 8,806.85 = 2,123.59 : x
  2. Step 2: Convert to fraction form
    5,870.87/8,806.85 = 2,123.59/x
  3. Step 3: Cross multiply
    5,870.87x = 8,806.85 × 2,123.59
  4. Step 4: Simplify right side
    5,870.87x = 18,702,138.59
  5. Step 5: Solve for x
    x = 18,702,138.59/5,870.87
  6. Step 6: Final answer
    x = 3,185.58

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1.5x scale

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.