Home / 7,528.87-10,389.69-4,171.68

Finding the Fourth Proportional to 7,528.87, 10,389.69 and 4,171.68

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Solution

The fourth proportional to 7,528.87, 10,389.69 and 4,171.68 is: 5,756.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,528.87 : 10,389.69 = 4,171.68 : x
  2. Step 2: Convert to fraction form
    7,528.87/10,389.69 = 4,171.68/x
  3. Step 3: Cross multiply
    7,528.87x = 10,389.69 × 4,171.68
  4. Step 4: Simplify right side
    7,528.87x = 43,342,444.49
  5. Step 5: Solve for x
    x = 43,342,444.49/7,528.87
  6. Step 6: Final answer
    x = 5,756.83

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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.