Home / 7,780.39-11,667.54-2,713.30

Finding the Fourth Proportional to 7,780.39, 11,667.54 and 2,713.30

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Solution

The fourth proportional to 7,780.39, 11,667.54 and 2,713.30 is: 4,068.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.39 : 11,667.54 = 2,713.30 : x
  2. Step 2: Convert to fraction form
    7,780.39/11,667.54 = 2,713.30/x
  3. Step 3: Cross multiply
    7,780.39x = 11,667.54 × 2,713.30
  4. Step 4: Simplify right side
    7,780.39x = 31,657,536.28
  5. Step 5: Solve for x
    x = 31,657,536.28/7,780.39
  6. Step 6: Final answer
    x = 4,068.89

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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.