Home / 7,118.08-9,827.04-4,731.28

Finding the Fourth Proportional to 7,118.08, 9,827.04 and 4,731.28

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Solution

The fourth proportional to 7,118.08, 9,827.04 and 4,731.28 is: 6,531.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,118.08 : 9,827.04 = 4,731.28 : x
  2. Step 2: Convert to fraction form
    7,118.08/9,827.04 = 4,731.28/x
  3. Step 3: Cross multiply
    7,118.08x = 9,827.04 × 4,731.28
  4. Step 4: Simplify right side
    7,118.08x = 46,494,477.81
  5. Step 5: Solve for x
    x = 46,494,477.81/7,118.08
  6. Step 6: Final answer
    x = 6,531.88

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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.