Home / 4,739.40-7,109.10-1,276.64

Finding the Fourth Proportional to 4,739.40, 7,109.10 and 1,276.64

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Solution

The fourth proportional to 4,739.40, 7,109.10 and 1,276.64 is: 1,914.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,739.40 : 7,109.10 = 1,276.64 : x
  2. Step 2: Convert to fraction form
    4,739.40/7,109.10 = 1,276.64/x
  3. Step 3: Cross multiply
    4,739.40x = 7,109.10 × 1,276.64
  4. Step 4: Simplify right side
    4,739.40x = 9,075,761.42
  5. Step 5: Solve for x
    x = 9,075,761.42/4,739.40
  6. Step 6: Final answer
    x = 1,914.96

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Similar ratio
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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.