Home / 5,028.76-6,940-2,904.68

Finding the Fourth Proportional to 5,028.76, 6,940 and 2,904.68

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Solution

The fourth proportional to 5,028.76, 6,940 and 2,904.68 is: 4,008.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,028.76 : 6,940 = 2,904.68 : x
  2. Step 2: Convert to fraction form
    5,028.76/6,940 = 2,904.68/x
  3. Step 3: Cross multiply
    5,028.76x = 6,940 × 2,904.68
  4. Step 4: Simplify right side
    5,028.76x = 20,158,479.20
  5. Step 5: Solve for x
    x = 20,158,479.20/5,028.76
  6. Step 6: Final answer
    x = 4,008.64

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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.