Home / 4,667.40-7,001.78-1,380.51

Finding the Fourth Proportional to 4,667.40, 7,001.78 and 1,380.51

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Solution

The fourth proportional to 4,667.40, 7,001.78 and 1,380.51 is: 2,070.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,667.40 : 7,001.78 = 1,380.51 : x
  2. Step 2: Convert to fraction form
    4,667.40/7,001.78 = 1,380.51/x
  3. Step 3: Cross multiply
    4,667.40x = 7,001.78 × 1,380.51
  4. Step 4: Simplify right side
    4,667.40x = 9,666,020.41
  5. Step 5: Solve for x
    x = 9,666,020.41/4,667.40
  6. Step 6: Final answer
    x = 2,070.96

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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.