Home / 6,080.40-9,109.80-5,389.20

Finding the Fourth Proportional to 6,080.40, 9,109.80 and 5,389.20

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Solution

The fourth proportional to 6,080.40, 9,109.80 and 5,389.20 is: 8,074.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,080.40 : 9,109.80 = 5,389.20 : x
  2. Step 2: Convert to fraction form
    6,080.40/9,109.80 = 5,389.20/x
  3. Step 3: Cross multiply
    6,080.40x = 9,109.80 × 5,389.20
  4. Step 4: Simplify right side
    6,080.40x = 49,094,534.16
  5. Step 5: Solve for x
    x = 49,094,534.16/6,080.40
  6. Step 6: Final answer
    x = 8,074.23

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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.