Home / 2,909.69-4,015.49-1,667.93

Finding the Fourth Proportional to 2,909.69, 4,015.49 and 1,667.93

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Solution

The fourth proportional to 2,909.69, 4,015.49 and 1,667.93 is: 2,301.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.69 : 4,015.49 = 1,667.93 : x
  2. Step 2: Convert to fraction form
    2,909.69/4,015.49 = 1,667.93/x
  3. Step 3: Cross multiply
    2,909.69x = 4,015.49 × 1,667.93
  4. Step 4: Simplify right side
    2,909.69x = 6,697,557.93
  5. Step 5: Solve for x
    x = 6,697,557.93/2,909.69
  6. Step 6: Final answer
    x = 2,301.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.