Home / 2,972.04-4,101.26-1,645.67

Finding the Fourth Proportional to 2,972.04, 4,101.26 and 1,645.67

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Solution

The fourth proportional to 2,972.04, 4,101.26 and 1,645.67 is: 2,270.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.04 : 4,101.26 = 1,645.67 : x
  2. Step 2: Convert to fraction form
    2,972.04/4,101.26 = 1,645.67/x
  3. Step 3: Cross multiply
    2,972.04x = 4,101.26 × 1,645.67
  4. Step 4: Simplify right side
    2,972.04x = 6,749,291.81
  5. Step 5: Solve for x
    x = 6,749,291.81/2,972.04
  6. Step 6: Final answer
    x = 2,270.93

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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.