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Finding the Fourth Proportional to 4,695.63, 6,479.62 and 2,678.79

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Solution

The fourth proportional to 4,695.63, 6,479.62 and 2,678.79 is: 3,696.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,695.63 : 6,479.62 = 2,678.79 : x
  2. Step 2: Convert to fraction form
    4,695.63/6,479.62 = 2,678.79/x
  3. Step 3: Cross multiply
    4,695.63x = 6,479.62 × 2,678.79
  4. Step 4: Simplify right side
    4,695.63x = 17,357,541.26
  5. Step 5: Solve for x
    x = 17,357,541.26/4,695.63
  6. Step 6: Final answer
    x = 3,696.53

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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.