Home / 1,555.26-2,146.34-965.99

Finding the Fourth Proportional to 1,555.26, 2,146.34 and 965.99

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Solution

The fourth proportional to 1,555.26, 2,146.34 and 965.99 is: 1,333.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.26 : 2,146.34 = 965.99 : x
  2. Step 2: Convert to fraction form
    1,555.26/2,146.34 = 965.99/x
  3. Step 3: Cross multiply
    1,555.26x = 2,146.34 × 965.99
  4. Step 4: Simplify right side
    1,555.26x = 2,073,327.41
  5. Step 5: Solve for x
    x = 2,073,327.41/1,555.26
  6. Step 6: Final answer
    x = 1,333.11

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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.