Home / 4,880.16-6,735.96-2,890.80

Finding the Fourth Proportional to 4,880.16, 6,735.96 and 2,890.80

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Solution

The fourth proportional to 4,880.16, 6,735.96 and 2,890.80 is: 3,990.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880.16 : 6,735.96 = 2,890.80 : x
  2. Step 2: Convert to fraction form
    4,880.16/6,735.96 = 2,890.80/x
  3. Step 3: Cross multiply
    4,880.16x = 6,735.96 × 2,890.80
  4. Step 4: Simplify right side
    4,880.16x = 19,472,313.17
  5. Step 5: Solve for x
    x = 19,472,313.17/4,880.16
  6. Step 6: Final answer
    x = 3,990.10

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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.