Home / 5,521.04-7,620-3,162.72

Finding the Fourth Proportional to 5,521.04, 7,620 and 3,162.72

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Solution

The fourth proportional to 5,521.04, 7,620 and 3,162.72 is: 4,365.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,521.04 : 7,620 = 3,162.72 : x
  2. Step 2: Convert to fraction form
    5,521.04/7,620 = 3,162.72/x
  3. Step 3: Cross multiply
    5,521.04x = 7,620 × 3,162.72
  4. Step 4: Simplify right side
    5,521.04x = 24,099,926.40
  5. Step 5: Solve for x
    x = 24,099,926.40/5,521.04
  6. Step 6: Final answer
    x = 4,365.11

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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.