Home / 5,225.77-7,839.42-1,762.21

Finding the Fourth Proportional to 5,225.77, 7,839.42 and 1,762.21

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Solution

The fourth proportional to 5,225.77, 7,839.42 and 1,762.21 is: 2,643.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,225.77 : 7,839.42 = 1,762.21 : x
  2. Step 2: Convert to fraction form
    5,225.77/7,839.42 = 1,762.21/x
  3. Step 3: Cross multiply
    5,225.77x = 7,839.42 × 1,762.21
  4. Step 4: Simplify right side
    5,225.77x = 13,814,704.32
  5. Step 5: Solve for x
    x = 13,814,704.32/5,225.77
  6. Step 6: Final answer
    x = 2,643.57

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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.