Home / 2,982.45-4,115.73-1,656.18

Finding the Fourth Proportional to 2,982.45, 4,115.73 and 1,656.18

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Solution

The fourth proportional to 2,982.45, 4,115.73 and 1,656.18 is: 2,285.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982.45 : 4,115.73 = 1,656.18 : x
  2. Step 2: Convert to fraction form
    2,982.45/4,115.73 = 1,656.18/x
  3. Step 3: Cross multiply
    2,982.45x = 4,115.73 × 1,656.18
  4. Step 4: Simplify right side
    2,982.45x = 6,816,389.71
  5. Step 5: Solve for x
    x = 6,816,389.71/2,982.45
  6. Step 6: Final answer
    x = 2,285.50

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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.