Home / 7,783.29-11,681.10-3,403.89

Finding the Fourth Proportional to 7,783.29, 11,681.10 and 3,403.89

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Solution

The fourth proportional to 7,783.29, 11,681.10 and 3,403.89 is: 5,108.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,783.29 : 11,681.10 = 3,403.89 : x
  2. Step 2: Convert to fraction form
    7,783.29/11,681.10 = 3,403.89/x
  3. Step 3: Cross multiply
    7,783.29x = 11,681.10 × 3,403.89
  4. Step 4: Simplify right side
    7,783.29x = 39,761,179.48
  5. Step 5: Solve for x
    x = 39,761,179.48/7,783.29
  6. Step 6: Final answer
    x = 5,108.53

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1.5x scale

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.