Home / 5,206.80-7,808.74-1,874.57

Finding the Fourth Proportional to 5,206.80, 7,808.74 and 1,874.57

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Solution

The fourth proportional to 5,206.80, 7,808.74 and 1,874.57 is: 2,811.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,206.80 : 7,808.74 = 1,874.57 : x
  2. Step 2: Convert to fraction form
    5,206.80/7,808.74 = 1,874.57/x
  3. Step 3: Cross multiply
    5,206.80x = 7,808.74 × 1,874.57
  4. Step 4: Simplify right side
    5,206.80x = 14,637,986.01
  5. Step 5: Solve for x
    x = 14,637,986.01/5,206.80
  6. Step 6: Final answer
    x = 2,811.32

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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.