Home / 4,620.09-6,931.86-2,772.53

Finding the Fourth Proportional to 4,620.09, 6,931.86 and 2,772.53

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Solution

The fourth proportional to 4,620.09, 6,931.86 and 2,772.53 is: 4,159.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,620.09 : 6,931.86 = 2,772.53 : x
  2. Step 2: Convert to fraction form
    4,620.09/6,931.86 = 2,772.53/x
  3. Step 3: Cross multiply
    4,620.09x = 6,931.86 × 2,772.53
  4. Step 4: Simplify right side
    4,620.09x = 19,218,807.14
  5. Step 5: Solve for x
    x = 19,218,807.14/4,620.09
  6. Step 6: Final answer
    x = 4,159.83

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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.