Home / 1,679.23-2,315.06-1,416.79

Finding the Fourth Proportional to 1,679.23, 2,315.06 and 1,416.79

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Solution

The fourth proportional to 1,679.23, 2,315.06 and 1,416.79 is: 1,953.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679.23 : 2,315.06 = 1,416.79 : x
  2. Step 2: Convert to fraction form
    1,679.23/2,315.06 = 1,416.79/x
  3. Step 3: Cross multiply
    1,679.23x = 2,315.06 × 1,416.79
  4. Step 4: Simplify right side
    1,679.23x = 3,279,942.28
  5. Step 5: Solve for x
    x = 3,279,942.28/1,679.23
  6. Step 6: Final answer
    x = 1,953.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.