Home / 4,870.34-6,720.92-2,880.88

Finding the Fourth Proportional to 4,870.34, 6,720.92 and 2,880.88

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Solution

The fourth proportional to 4,870.34, 6,720.92 and 2,880.88 is: 3,975.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,870.34 : 6,720.92 = 2,880.88 : x
  2. Step 2: Convert to fraction form
    4,870.34/6,720.92 = 2,880.88/x
  3. Step 3: Cross multiply
    4,870.34x = 6,720.92 × 2,880.88
  4. Step 4: Simplify right side
    4,870.34x = 19,362,164.01
  5. Step 5: Solve for x
    x = 19,362,164.01/4,870.34
  6. Step 6: Final answer
    x = 3,975.53

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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.