Home / 3,762.40-5,189.52-2,645.68

Finding the Fourth Proportional to 3,762.40, 5,189.52 and 2,645.68

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Solution

The fourth proportional to 3,762.40, 5,189.52 and 2,645.68 is: 3,649.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,762.40 : 5,189.52 = 2,645.68 : x
  2. Step 2: Convert to fraction form
    3,762.40/5,189.52 = 2,645.68/x
  3. Step 3: Cross multiply
    3,762.40x = 5,189.52 × 2,645.68
  4. Step 4: Simplify right side
    3,762.40x = 13,729,809.27
  5. Step 5: Solve for x
    x = 13,729,809.27/3,762.40
  6. Step 6: Final answer
    x = 3,649.22

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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.