Home / 4,428.80-6,632.40-2,117.60

Finding the Fourth Proportional to 4,428.80, 6,632.40 and 2,117.60

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Solution

The fourth proportional to 4,428.80, 6,632.40 and 2,117.60 is: 3,171.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,428.80 : 6,632.40 = 2,117.60 : x
  2. Step 2: Convert to fraction form
    4,428.80/6,632.40 = 2,117.60/x
  3. Step 3: Cross multiply
    4,428.80x = 6,632.40 × 2,117.60
  4. Step 4: Simplify right side
    4,428.80x = 14,044,770.24
  5. Step 5: Solve for x
    x = 14,044,770.24/4,428.80
  6. Step 6: Final answer
    x = 3,171.24

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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.