Home / 7,113.76-10,670.64-3,218.08

Finding the Fourth Proportional to 7,113.76, 10,670.64 and 3,218.08

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Solution

The fourth proportional to 7,113.76, 10,670.64 and 3,218.08 is: 4,827.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,113.76 : 10,670.64 = 3,218.08 : x
  2. Step 2: Convert to fraction form
    7,113.76/10,670.64 = 3,218.08/x
  3. Step 3: Cross multiply
    7,113.76x = 10,670.64 × 3,218.08
  4. Step 4: Simplify right side
    7,113.76x = 34,338,973.17
  5. Step 5: Solve for x
    x = 34,338,973.17/7,113.76
  6. Step 6: Final answer
    x = 4,827.12

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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.