Home / 6,624.10-9,138.03-3,970.54

Finding the Fourth Proportional to 6,624.10, 9,138.03 and 3,970.54

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Solution

The fourth proportional to 6,624.10, 9,138.03 and 3,970.54 is: 5,477.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,624.10 : 9,138.03 = 3,970.54 : x
  2. Step 2: Convert to fraction form
    6,624.10/9,138.03 = 3,970.54/x
  3. Step 3: Cross multiply
    6,624.10x = 9,138.03 × 3,970.54
  4. Step 4: Simplify right side
    6,624.10x = 36,282,913.64
  5. Step 5: Solve for x
    x = 36,282,913.64/6,624.10
  6. Step 6: Final answer
    x = 5,477.41

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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.