Home / 2,945.70-4,412.88-1,643.22

Finding the Fourth Proportional to 2,945.70, 4,412.88 and 1,643.22

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Solution

The fourth proportional to 2,945.70, 4,412.88 and 1,643.22 is: 2,461.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.70 : 4,412.88 = 1,643.22 : x
  2. Step 2: Convert to fraction form
    2,945.70/4,412.88 = 1,643.22/x
  3. Step 3: Cross multiply
    2,945.70x = 4,412.88 × 1,643.22
  4. Step 4: Simplify right side
    2,945.70x = 7,251,332.67
  5. Step 5: Solve for x
    x = 7,251,332.67/2,945.70
  6. Step 6: Final answer
    x = 2,461.67

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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.