Home / 3,087.56-4,259.58-2,156.60

Finding the Fourth Proportional to 3,087.56, 4,259.58 and 2,156.60

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Solution

The fourth proportional to 3,087.56, 4,259.58 and 2,156.60 is: 2,975.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.56 : 4,259.58 = 2,156.60 : x
  2. Step 2: Convert to fraction form
    3,087.56/4,259.58 = 2,156.60/x
  3. Step 3: Cross multiply
    3,087.56x = 4,259.58 × 2,156.60
  4. Step 4: Simplify right side
    3,087.56x = 9,186,210.23
  5. Step 5: Solve for x
    x = 9,186,210.23/3,087.56
  6. Step 6: Final answer
    x = 2,975.23

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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.