Home / 7,439.89-11,154.37-3,547.03

Finding the Fourth Proportional to 7,439.89, 11,154.37 and 3,547.03

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Solution

The fourth proportional to 7,439.89, 11,154.37 and 3,547.03 is: 5,317.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,439.89 : 11,154.37 = 3,547.03 : x
  2. Step 2: Convert to fraction form
    7,439.89/11,154.37 = 3,547.03/x
  3. Step 3: Cross multiply
    7,439.89x = 11,154.37 × 3,547.03
  4. Step 4: Simplify right side
    7,439.89x = 39,564,885.02
  5. Step 5: Solve for x
    x = 39,564,885.02/7,439.89
  6. Step 6: Final answer
    x = 5,317.94

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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.