Home / 2,427.63-3,635.95-1,990.23

Finding the Fourth Proportional to 2,427.63, 3,635.95 and 1,990.23

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Solution

The fourth proportional to 2,427.63, 3,635.95 and 1,990.23 is: 2,980.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,427.63 : 3,635.95 = 1,990.23 : x
  2. Step 2: Convert to fraction form
    2,427.63/3,635.95 = 1,990.23/x
  3. Step 3: Cross multiply
    2,427.63x = 3,635.95 × 1,990.23
  4. Step 4: Simplify right side
    2,427.63x = 7,236,376.77
  5. Step 5: Solve for x
    x = 7,236,376.77/2,427.63
  6. Step 6: Final answer
    x = 2,980.84

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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.