Home / 5,079.56-7,009.88-3,090.20

Finding the Fourth Proportional to 5,079.56, 7,009.88 and 3,090.20

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Solution

The fourth proportional to 5,079.56, 7,009.88 and 3,090.20 is: 4,264.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.56 : 7,009.88 = 3,090.20 : x
  2. Step 2: Convert to fraction form
    5,079.56/7,009.88 = 3,090.20/x
  3. Step 3: Cross multiply
    5,079.56x = 7,009.88 × 3,090.20
  4. Step 4: Simplify right side
    5,079.56x = 21,661,880.68
  5. Step 5: Solve for x
    x = 21,661,880.68/5,079.56
  6. Step 6: Final answer
    x = 4,264.52

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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.