Home / 1,945.24-2,684.48-1,117.24

Finding the Fourth Proportional to 1,945.24, 2,684.48 and 1,117.24

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Solution

The fourth proportional to 1,945.24, 2,684.48 and 1,117.24 is: 1,541.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945.24 : 2,684.48 = 1,117.24 : x
  2. Step 2: Convert to fraction form
    1,945.24/2,684.48 = 1,117.24/x
  3. Step 3: Cross multiply
    1,945.24x = 2,684.48 × 1,117.24
  4. Step 4: Simplify right side
    1,945.24x = 2,999,208.44
  5. Step 5: Solve for x
    x = 2,999,208.44/1,945.24
  6. Step 6: Final answer
    x = 1,541.82

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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.