Home / 4,880.70-6,730.47-2,891.34

Finding the Fourth Proportional to 4,880.70, 6,730.47 and 2,891.34

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Solution

The fourth proportional to 4,880.70, 6,730.47 and 2,891.34 is: 3,987.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880.70 : 6,730.47 = 2,891.34 : x
  2. Step 2: Convert to fraction form
    4,880.70/6,730.47 = 2,891.34/x
  3. Step 3: Cross multiply
    4,880.70x = 6,730.47 × 2,891.34
  4. Step 4: Simplify right side
    4,880.70x = 19,460,077.13
  5. Step 5: Solve for x
    x = 19,460,077.13/4,880.70
  6. Step 6: Final answer
    x = 3,987.15

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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.