Home / 4,678.96-6,458.16-2,887.12

Finding the Fourth Proportional to 4,678.96, 6,458.16 and 2,887.12

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Solution

The fourth proportional to 4,678.96, 6,458.16 and 2,887.12 is: 3,984.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.96 : 6,458.16 = 2,887.12 : x
  2. Step 2: Convert to fraction form
    4,678.96/6,458.16 = 2,887.12/x
  3. Step 3: Cross multiply
    4,678.96x = 6,458.16 × 2,887.12
  4. Step 4: Simplify right side
    4,678.96x = 18,645,482.90
  5. Step 5: Solve for x
    x = 18,645,482.90/4,678.96
  6. Step 6: Final answer
    x = 3,984.96

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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.