Home / 1,693.09-2,336.44-985.08

Finding the Fourth Proportional to 1,693.09, 2,336.44 and 985.08

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Solution

The fourth proportional to 1,693.09, 2,336.44 and 985.08 is: 1,359.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693.09 : 2,336.44 = 985.08 : x
  2. Step 2: Convert to fraction form
    1,693.09/2,336.44 = 985.08/x
  3. Step 3: Cross multiply
    1,693.09x = 2,336.44 × 985.08
  4. Step 4: Simplify right side
    1,693.09x = 2,301,580.32
  5. Step 5: Solve for x
    x = 2,301,580.32/1,693.09
  6. Step 6: Final answer
    x = 1,359.40

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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.