Home / 4,878.04-6,731.69-2,639.93

Finding the Fourth Proportional to 4,878.04, 6,731.69 and 2,639.93

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Solution

The fourth proportional to 4,878.04, 6,731.69 and 2,639.93 is: 3,643.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.04 : 6,731.69 = 2,639.93 : x
  2. Step 2: Convert to fraction form
    4,878.04/6,731.69 = 2,639.93/x
  3. Step 3: Cross multiply
    4,878.04x = 6,731.69 × 2,639.93
  4. Step 4: Simplify right side
    4,878.04x = 17,771,165.23
  5. Step 5: Solve for x
    x = 17,771,165.23/4,878.04
  6. Step 6: Final answer
    x = 3,643.10

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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.