Home / 1,671.23-2,306.21-914.99

Finding the Fourth Proportional to 1,671.23, 2,306.21 and 914.99

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Solution

The fourth proportional to 1,671.23, 2,306.21 and 914.99 is: 1,262.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,671.23 : 2,306.21 = 914.99 : x
  2. Step 2: Convert to fraction form
    1,671.23/2,306.21 = 914.99/x
  3. Step 3: Cross multiply
    1,671.23x = 2,306.21 × 914.99
  4. Step 4: Simplify right side
    1,671.23x = 2,110,142.98
  5. Step 5: Solve for x
    x = 2,110,142.98/1,671.23
  6. Step 6: Final answer
    x = 1,262.63

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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.