Home / 1,774.08-2,661.36-619.92

Finding the Fourth Proportional to 1,774.08, 2,661.36 and 619.92

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Solution

The fourth proportional to 1,774.08, 2,661.36 and 619.92 is: 929.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,774.08 : 2,661.36 = 619.92 : x
  2. Step 2: Convert to fraction form
    1,774.08/2,661.36 = 619.92/x
  3. Step 3: Cross multiply
    1,774.08x = 2,661.36 × 619.92
  4. Step 4: Simplify right side
    1,774.08x = 1,649,830.29
  5. Step 5: Solve for x
    x = 1,649,830.29/1,774.08
  6. Step 6: Final answer
    x = 929.96

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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.