Home / 5,381.75-8,069.31-1,870.25

Finding the Fourth Proportional to 5,381.75, 8,069.31 and 1,870.25

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Solution

The fourth proportional to 5,381.75, 8,069.31 and 1,870.25 is: 2,804.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.75 : 8,069.31 = 1,870.25 : x
  2. Step 2: Convert to fraction form
    5,381.75/8,069.31 = 1,870.25/x
  3. Step 3: Cross multiply
    5,381.75x = 8,069.31 × 1,870.25
  4. Step 4: Simplify right side
    5,381.75x = 15,091,586.68
  5. Step 5: Solve for x
    x = 15,091,586.68/5,381.75
  6. Step 6: Final answer
    x = 2,804.21

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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.