Home / 7,386.86-11,072.28-3,641.24

Finding the Fourth Proportional to 7,386.86, 11,072.28 and 3,641.24

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Solution

The fourth proportional to 7,386.86, 11,072.28 and 3,641.24 is: 5,457.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,386.86 : 11,072.28 = 3,641.24 : x
  2. Step 2: Convert to fraction form
    7,386.86/11,072.28 = 3,641.24/x
  3. Step 3: Cross multiply
    7,386.86x = 11,072.28 × 3,641.24
  4. Step 4: Simplify right side
    7,386.86x = 40,316,828.83
  5. Step 5: Solve for x
    x = 40,316,828.83/7,386.86
  6. Step 6: Final answer
    x = 5,457.91

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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.