Home / 3,172.23-4,774.88-2,870.37

Finding the Fourth Proportional to 3,172.23, 4,774.88 and 2,870.37

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Solution

The fourth proportional to 3,172.23, 4,774.88 and 2,870.37 is: 4,320.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.23 : 4,774.88 = 2,870.37 : x
  2. Step 2: Convert to fraction form
    3,172.23/4,774.88 = 2,870.37/x
  3. Step 3: Cross multiply
    3,172.23x = 4,774.88 × 2,870.37
  4. Step 4: Simplify right side
    3,172.23x = 13,705,679.48
  5. Step 5: Solve for x
    x = 13,705,679.48/3,172.23
  6. Step 6: Final answer
    x = 4,320.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.