Home / 5,440.40-8,160.88-1,977.52

Finding the Fourth Proportional to 5,440.40, 8,160.88 and 1,977.52

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Solution

The fourth proportional to 5,440.40, 8,160.88 and 1,977.52 is: 2,966.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.40 : 8,160.88 = 1,977.52 : x
  2. Step 2: Convert to fraction form
    5,440.40/8,160.88 = 1,977.52/x
  3. Step 3: Cross multiply
    5,440.40x = 8,160.88 × 1,977.52
  4. Step 4: Simplify right side
    5,440.40x = 16,138,303.42
  5. Step 5: Solve for x
    x = 16,138,303.42/5,440.40
  6. Step 6: Final answer
    x = 2,966.38

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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.