Home / 4,740.12-7,109.22-1,276.56

Finding the Fourth Proportional to 4,740.12, 7,109.22 and 1,276.56

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Solution

The fourth proportional to 4,740.12, 7,109.22 and 1,276.56 is: 1,914.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,740.12 : 7,109.22 = 1,276.56 : x
  2. Step 2: Convert to fraction form
    4,740.12/7,109.22 = 1,276.56/x
  3. Step 3: Cross multiply
    4,740.12x = 7,109.22 × 1,276.56
  4. Step 4: Simplify right side
    4,740.12x = 9,075,345.88
  5. Step 5: Solve for x
    x = 9,075,345.88/4,740.12
  6. Step 6: Final answer
    x = 1,914.58

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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.