Home / 2,068.36-2,853.32-1,920.16

Finding the Fourth Proportional to 2,068.36, 2,853.32 and 1,920.16

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Solution

The fourth proportional to 2,068.36, 2,853.32 and 1,920.16 is: 2,648.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,068.36 : 2,853.32 = 1,920.16 : x
  2. Step 2: Convert to fraction form
    2,068.36/2,853.32 = 1,920.16/x
  3. Step 3: Cross multiply
    2,068.36x = 2,853.32 × 1,920.16
  4. Step 4: Simplify right side
    2,068.36x = 5,478,830.93
  5. Step 5: Solve for x
    x = 5,478,830.93/2,068.36
  6. Step 6: Final answer
    x = 2,648.88

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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.