Home / 5,289.59-7,299.36-2,931.68

Finding the Fourth Proportional to 5,289.59, 7,299.36 and 2,931.68

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Solution

The fourth proportional to 5,289.59, 7,299.36 and 2,931.68 is: 4,045.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.59 : 7,299.36 = 2,931.68 : x
  2. Step 2: Convert to fraction form
    5,289.59/7,299.36 = 2,931.68/x
  3. Step 3: Cross multiply
    5,289.59x = 7,299.36 × 2,931.68
  4. Step 4: Simplify right side
    5,289.59x = 21,399,351.23
  5. Step 5: Solve for x
    x = 21,399,351.23/5,289.59
  6. Step 6: Final answer
    x = 4,045.56

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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.