Home / 2,079.48-3,119.19-692.83

Finding the Fourth Proportional to 2,079.48, 3,119.19 and 692.83

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Solution

The fourth proportional to 2,079.48, 3,119.19 and 692.83 is: 1,039.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.48 : 3,119.19 = 692.83 : x
  2. Step 2: Convert to fraction form
    2,079.48/3,119.19 = 692.83/x
  3. Step 3: Cross multiply
    2,079.48x = 3,119.19 × 692.83
  4. Step 4: Simplify right side
    2,079.48x = 2,161,068.41
  5. Step 5: Solve for x
    x = 2,161,068.41/2,079.48
  6. Step 6: Final answer
    x = 1,039.24

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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.