Home / 4,458-6,688.08-3,140.94

Finding the Fourth Proportional to 4,458, 6,688.08 and 3,140.94

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Solution

The fourth proportional to 4,458, 6,688.08 and 3,140.94 is: 4,712.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,458 : 6,688.08 = 3,140.94 : x
  2. Step 2: Convert to fraction form
    4,458/6,688.08 = 3,140.94/x
  3. Step 3: Cross multiply
    4,458x = 6,688.08 × 3,140.94
  4. Step 4: Simplify right side
    4,458x = 21,006,858.00
  5. Step 5: Solve for x
    x = 21,006,858.00/4,458
  6. Step 6: Final answer
    x = 4,712.17

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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.