Home / 2,983.06-4,114.70-1,920.46

Finding the Fourth Proportional to 2,983.06, 4,114.70 and 1,920.46

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Solution

The fourth proportional to 2,983.06, 4,114.70 and 1,920.46 is: 2,649.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,983.06 : 4,114.70 = 1,920.46 : x
  2. Step 2: Convert to fraction form
    2,983.06/4,114.70 = 1,920.46/x
  3. Step 3: Cross multiply
    2,983.06x = 4,114.70 × 1,920.46
  4. Step 4: Simplify right side
    2,983.06x = 7,902,116.76
  5. Step 5: Solve for x
    x = 7,902,116.76/2,983.06
  6. Step 6: Final answer
    x = 2,649.00

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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.