Home / 7,080.56-10,623-3,620.24

Finding the Fourth Proportional to 7,080.56, 10,623 and 3,620.24

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Solution

The fourth proportional to 7,080.56, 10,623 and 3,620.24 is: 5,431.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,080.56 : 10,623 = 3,620.24 : x
  2. Step 2: Convert to fraction form
    7,080.56/10,623 = 3,620.24/x
  3. Step 3: Cross multiply
    7,080.56x = 10,623 × 3,620.24
  4. Step 4: Simplify right side
    7,080.56x = 38,457,809.52
  5. Step 5: Solve for x
    x = 38,457,809.52/7,080.56
  6. Step 6: Final answer
    x = 5,431.46

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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.