Home / 4,678.34-6,455.67-2,908.58

Finding the Fourth Proportional to 4,678.34, 6,455.67 and 2,908.58

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Solution

The fourth proportional to 4,678.34, 6,455.67 and 2,908.58 is: 4,013.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.34 : 6,455.67 = 2,908.58 : x
  2. Step 2: Convert to fraction form
    4,678.34/6,455.67 = 2,908.58/x
  3. Step 3: Cross multiply
    4,678.34x = 6,455.67 × 2,908.58
  4. Step 4: Simplify right side
    4,678.34x = 18,776,832.65
  5. Step 5: Solve for x
    x = 18,776,832.65/4,678.34
  6. Step 6: Final answer
    x = 4,013.57

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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.