Home / 4,118.76-6,178.48-1,345.37

Finding the Fourth Proportional to 4,118.76, 6,178.48 and 1,345.37

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Solution

The fourth proportional to 4,118.76, 6,178.48 and 1,345.37 is: 2,018.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,118.76 : 6,178.48 = 1,345.37 : x
  2. Step 2: Convert to fraction form
    4,118.76/6,178.48 = 1,345.37/x
  3. Step 3: Cross multiply
    4,118.76x = 6,178.48 × 1,345.37
  4. Step 4: Simplify right side
    4,118.76x = 8,312,341.64
  5. Step 5: Solve for x
    x = 8,312,341.64/4,118.76
  6. Step 6: Final answer
    x = 2,018.17

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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.