Home / 4,458.86-6,688.30-1,338.74

Finding the Fourth Proportional to 4,458.86, 6,688.30 and 1,338.74

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Solution

The fourth proportional to 4,458.86, 6,688.30 and 1,338.74 is: 2,008.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,458.86 : 6,688.30 = 1,338.74 : x
  2. Step 2: Convert to fraction form
    4,458.86/6,688.30 = 1,338.74/x
  3. Step 3: Cross multiply
    4,458.86x = 6,688.30 × 1,338.74
  4. Step 4: Simplify right side
    4,458.86x = 8,953,908.12
  5. Step 5: Solve for x
    x = 8,953,908.12/4,458.86
  6. Step 6: Final answer
    x = 2,008.11

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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.