Home / 5,289.66-7,299.24-2,931.60

Finding the Fourth Proportional to 5,289.66, 7,299.24 and 2,931.60

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Solution

The fourth proportional to 5,289.66, 7,299.24 and 2,931.60 is: 4,045.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.66 : 7,299.24 = 2,931.60 : x
  2. Step 2: Convert to fraction form
    5,289.66/7,299.24 = 2,931.60/x
  3. Step 3: Cross multiply
    5,289.66x = 7,299.24 × 2,931.60
  4. Step 4: Simplify right side
    5,289.66x = 21,398,451.98
  5. Step 5: Solve for x
    x = 21,398,451.98/5,289.66
  6. Step 6: Final answer
    x = 4,045.34

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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.