Home / 2,620.16-3,615.35-1,923.20

Finding the Fourth Proportional to 2,620.16, 3,615.35 and 1,923.20

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Solution

The fourth proportional to 2,620.16, 3,615.35 and 1,923.20 is: 2,653.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.16 : 3,615.35 = 1,923.20 : x
  2. Step 2: Convert to fraction form
    2,620.16/3,615.35 = 1,923.20/x
  3. Step 3: Cross multiply
    2,620.16x = 3,615.35 × 1,923.20
  4. Step 4: Simplify right side
    2,620.16x = 6,953,041.12
  5. Step 5: Solve for x
    x = 6,953,041.12/2,620.16
  6. Step 6: Final answer
    x = 2,653.67

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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.