Home / 1,680.06-2,317.62-1,365.72

Finding the Fourth Proportional to 1,680.06, 2,317.62 and 1,365.72

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Solution

The fourth proportional to 1,680.06, 2,317.62 and 1,365.72 is: 1,883.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680.06 : 2,317.62 = 1,365.72 : x
  2. Step 2: Convert to fraction form
    1,680.06/2,317.62 = 1,365.72/x
  3. Step 3: Cross multiply
    1,680.06x = 2,317.62 × 1,365.72
  4. Step 4: Simplify right side
    1,680.06x = 3,165,219.99
  5. Step 5: Solve for x
    x = 3,165,219.99/1,680.06
  6. Step 6: Final answer
    x = 1,883.99

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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.