Home / 4,289.60-5,920.16-2,521.20

Finding the Fourth Proportional to 4,289.60, 5,920.16 and 2,521.20

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Solution

The fourth proportional to 4,289.60, 5,920.16 and 2,521.20 is: 3,479.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,289.60 : 5,920.16 = 2,521.20 : x
  2. Step 2: Convert to fraction form
    4,289.60/5,920.16 = 2,521.20/x
  3. Step 3: Cross multiply
    4,289.60x = 5,920.16 × 2,521.20
  4. Step 4: Simplify right side
    4,289.60x = 14,925,907.39
  5. Step 5: Solve for x
    x = 14,925,907.39/4,289.60
  6. Step 6: Final answer
    x = 3,479.56

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.