Home / 2,845.40-3,926.94-1,667.45

Finding the Fourth Proportional to 2,845.40, 3,926.94 and 1,667.45

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Solution

The fourth proportional to 2,845.40, 3,926.94 and 1,667.45 is: 2,301.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845.40 : 3,926.94 = 1,667.45 : x
  2. Step 2: Convert to fraction form
    2,845.40/3,926.94 = 1,667.45/x
  3. Step 3: Cross multiply
    2,845.40x = 3,926.94 × 1,667.45
  4. Step 4: Simplify right side
    2,845.40x = 6,547,956.47
  5. Step 5: Solve for x
    x = 6,547,956.47/2,845.40
  6. Step 6: Final answer
    x = 2,301.25

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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.