Home / 3,762.06-5,643.12-1,421.45

Finding the Fourth Proportional to 3,762.06, 5,643.12 and 1,421.45

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Solution

The fourth proportional to 3,762.06, 5,643.12 and 1,421.45 is: 2,132.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,762.06 : 5,643.12 = 1,421.45 : x
  2. Step 2: Convert to fraction form
    3,762.06/5,643.12 = 1,421.45/x
  3. Step 3: Cross multiply
    3,762.06x = 5,643.12 × 1,421.45
  4. Step 4: Simplify right side
    3,762.06x = 8,021,412.92
  5. Step 5: Solve for x
    x = 8,021,412.92/3,762.06
  6. Step 6: Final answer
    x = 2,132.19

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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.