Home / 3,870.95-5,806.68-1,530.81

Finding the Fourth Proportional to 3,870.95, 5,806.68 and 1,530.81

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Solution

The fourth proportional to 3,870.95, 5,806.68 and 1,530.81 is: 2,296.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870.95 : 5,806.68 = 1,530.81 : x
  2. Step 2: Convert to fraction form
    3,870.95/5,806.68 = 1,530.81/x
  3. Step 3: Cross multiply
    3,870.95x = 5,806.68 × 1,530.81
  4. Step 4: Simplify right side
    3,870.95x = 8,888,923.81
  5. Step 5: Solve for x
    x = 8,888,923.81/3,870.95
  6. Step 6: Final answer
    x = 2,296.32

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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.