Home / 2,079.63-3,119.45-1,314.99

Finding the Fourth Proportional to 2,079.63, 3,119.45 and 1,314.99

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Solution

The fourth proportional to 2,079.63, 3,119.45 and 1,314.99 is: 1,972.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.63 : 3,119.45 = 1,314.99 : x
  2. Step 2: Convert to fraction form
    2,079.63/3,119.45 = 1,314.99/x
  3. Step 3: Cross multiply
    2,079.63x = 3,119.45 × 1,314.99
  4. Step 4: Simplify right side
    2,079.63x = 4,102,038.98
  5. Step 5: Solve for x
    x = 4,102,038.98/2,079.63
  6. Step 6: Final answer
    x = 1,972.49

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Double scale
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Similar ratio
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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.