Home / 2,900.25-4,346.47-2,116.58

Finding the Fourth Proportional to 2,900.25, 4,346.47 and 2,116.58

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Solution

The fourth proportional to 2,900.25, 4,346.47 and 2,116.58 is: 3,172.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.25 : 4,346.47 = 2,116.58 : x
  2. Step 2: Convert to fraction form
    2,900.25/4,346.47 = 2,116.58/x
  3. Step 3: Cross multiply
    2,900.25x = 4,346.47 × 2,116.58
  4. Step 4: Simplify right side
    2,900.25x = 9,199,651.47
  5. Step 5: Solve for x
    x = 9,199,651.47/2,900.25
  6. Step 6: Final answer
    x = 3,172.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.