Home / 7,726.74-10,662.98-4,190.01

Finding the Fourth Proportional to 7,726.74, 10,662.98 and 4,190.01

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Solution

The fourth proportional to 7,726.74, 10,662.98 and 4,190.01 is: 5,782.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,726.74 : 10,662.98 = 4,190.01 : x
  2. Step 2: Convert to fraction form
    7,726.74/10,662.98 = 4,190.01/x
  3. Step 3: Cross multiply
    7,726.74x = 10,662.98 × 4,190.01
  4. Step 4: Simplify right side
    7,726.74x = 44,677,971.88
  5. Step 5: Solve for x
    x = 44,677,971.88/7,726.74
  6. Step 6: Final answer
    x = 5,782.25

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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.