Home / 4,916.80-6,785.12-2,678.77

Finding the Fourth Proportional to 4,916.80, 6,785.12 and 2,678.77

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Solution

The fourth proportional to 4,916.80, 6,785.12 and 2,678.77 is: 3,696.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,916.80 : 6,785.12 = 2,678.77 : x
  2. Step 2: Convert to fraction form
    4,916.80/6,785.12 = 2,678.77/x
  3. Step 3: Cross multiply
    4,916.80x = 6,785.12 × 2,678.77
  4. Step 4: Simplify right side
    4,916.80x = 18,175,728.58
  5. Step 5: Solve for x
    x = 18,175,728.58/4,916.80
  6. Step 6: Final answer
    x = 3,696.66

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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.