Home / 4,870.26-6,720.53-2,880.43

Finding the Fourth Proportional to 4,870.26, 6,720.53 and 2,880.43

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Solution

The fourth proportional to 4,870.26, 6,720.53 and 2,880.43 is: 3,974.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,870.26 : 6,720.53 = 2,880.43 : x
  2. Step 2: Convert to fraction form
    4,870.26/6,720.53 = 2,880.43/x
  3. Step 3: Cross multiply
    4,870.26x = 6,720.53 × 2,880.43
  4. Step 4: Simplify right side
    4,870.26x = 19,357,985.02
  5. Step 5: Solve for x
    x = 19,357,985.02/4,870.26
  6. Step 6: Final answer
    x = 3,974.73

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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.