Home / 5,440.28-8,161.62-1,977.50

Finding the Fourth Proportional to 5,440.28, 8,161.62 and 1,977.50

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Solution

The fourth proportional to 5,440.28, 8,161.62 and 1,977.50 is: 2,966.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.28 : 8,161.62 = 1,977.50 : x
  2. Step 2: Convert to fraction form
    5,440.28/8,161.62 = 1,977.50/x
  3. Step 3: Cross multiply
    5,440.28x = 8,161.62 × 1,977.50
  4. Step 4: Simplify right side
    5,440.28x = 16,139,603.55
  5. Step 5: Solve for x
    x = 16,139,603.55/5,440.28
  6. Step 6: Final answer
    x = 2,966.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.