Home / 4,976.77-6,868.56-2,880.91

Finding the Fourth Proportional to 4,976.77, 6,868.56 and 2,880.91

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Solution

The fourth proportional to 4,976.77, 6,868.56 and 2,880.91 is: 3,976.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,976.77 : 6,868.56 = 2,880.91 : x
  2. Step 2: Convert to fraction form
    4,976.77/6,868.56 = 2,880.91/x
  3. Step 3: Cross multiply
    4,976.77x = 6,868.56 × 2,880.91
  4. Step 4: Simplify right side
    4,976.77x = 19,787,703.19
  5. Step 5: Solve for x
    x = 19,787,703.19/4,976.77
  6. Step 6: Final answer
    x = 3,976.01

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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.