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Finding the Fourth Proportional to 4,289, 5,920.20 and 2,718.08

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Solution

The fourth proportional to 4,289, 5,920.20 and 2,718.08 is: 3,751.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,289 : 5,920.20 = 2,718.08 : x
  2. Step 2: Convert to fraction form
    4,289/5,920.20 = 2,718.08/x
  3. Step 3: Cross multiply
    4,289x = 5,920.20 × 2,718.08
  4. Step 4: Simplify right side
    4,289x = 16,091,577.22
  5. Step 5: Solve for x
    x = 16,091,577.22/4,289
  6. Step 6: Final answer
    x = 3,751.82

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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.