Home / 1,444.18-1,991.64-946.64

Finding the Fourth Proportional to 1,444.18, 1,991.64 and 946.64

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Solution

The fourth proportional to 1,444.18, 1,991.64 and 946.64 is: 1,305.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,444.18 : 1,991.64 = 946.64 : x
  2. Step 2: Convert to fraction form
    1,444.18/1,991.64 = 946.64/x
  3. Step 3: Cross multiply
    1,444.18x = 1,991.64 × 946.64
  4. Step 4: Simplify right side
    1,444.18x = 1,885,366.09
  5. Step 5: Solve for x
    x = 1,885,366.09/1,444.18
  6. Step 6: Final answer
    x = 1,305.49

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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.