Home / 7,528.58-10,389.43-4,171.60

Finding the Fourth Proportional to 7,528.58, 10,389.43 and 4,171.60

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Solution

The fourth proportional to 7,528.58, 10,389.43 and 4,171.60 is: 5,756.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,528.58 : 10,389.43 = 4,171.60 : x
  2. Step 2: Convert to fraction form
    7,528.58/10,389.43 = 4,171.60/x
  3. Step 3: Cross multiply
    7,528.58x = 10,389.43 × 4,171.60
  4. Step 4: Simplify right side
    7,528.58x = 43,340,564.39
  5. Step 5: Solve for x
    x = 43,340,564.39/7,528.58
  6. Step 6: Final answer
    x = 5,756.81

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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.