Home / 2,619.58-3,615.04-1,440.67

Finding the Fourth Proportional to 2,619.58, 3,615.04 and 1,440.67

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Solution

The fourth proportional to 2,619.58, 3,615.04 and 1,440.67 is: 1,988.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.58 : 3,615.04 = 1,440.67 : x
  2. Step 2: Convert to fraction form
    2,619.58/3,615.04 = 1,440.67/x
  3. Step 3: Cross multiply
    2,619.58x = 3,615.04 × 1,440.67
  4. Step 4: Simplify right side
    2,619.58x = 5,208,079.68
  5. Step 5: Solve for x
    x = 5,208,079.68/2,619.58
  6. Step 6: Final answer
    x = 1,988.14

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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.