Home / 4,762.54-7,139.96-1,991.34

Finding the Fourth Proportional to 4,762.54, 7,139.96 and 1,991.34

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Solution

The fourth proportional to 4,762.54, 7,139.96 and 1,991.34 is: 2,985.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,762.54 : 7,139.96 = 1,991.34 : x
  2. Step 2: Convert to fraction form
    4,762.54/7,139.96 = 1,991.34/x
  3. Step 3: Cross multiply
    4,762.54x = 7,139.96 × 1,991.34
  4. Step 4: Simplify right side
    4,762.54x = 14,218,087.95
  5. Step 5: Solve for x
    x = 14,218,087.95/4,762.54
  6. Step 6: Final answer
    x = 2,985.40

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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.