Home / 1,111.14-1,533.51-946.08

Finding the Fourth Proportional to 1,111.14, 1,533.51 and 946.08

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Solution

The fourth proportional to 1,111.14, 1,533.51 and 946.08 is: 1,305.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111.14 : 1,533.51 = 946.08 : x
  2. Step 2: Convert to fraction form
    1,111.14/1,533.51 = 946.08/x
  3. Step 3: Cross multiply
    1,111.14x = 1,533.51 × 946.08
  4. Step 4: Simplify right side
    1,111.14x = 1,450,823.14
  5. Step 5: Solve for x
    x = 1,450,823.14/1,111.14
  6. Step 6: Final answer
    x = 1,305.71

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Double scale
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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.