Home / 3,011.91-4,156.36-1,667.58

Finding the Fourth Proportional to 3,011.91, 4,156.36 and 1,667.58

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Solution

The fourth proportional to 3,011.91, 4,156.36 and 1,667.58 is: 2,301.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.91 : 4,156.36 = 1,667.58 : x
  2. Step 2: Convert to fraction form
    3,011.91/4,156.36 = 1,667.58/x
  3. Step 3: Cross multiply
    3,011.91x = 4,156.36 × 1,667.58
  4. Step 4: Simplify right side
    3,011.91x = 6,931,062.81
  5. Step 5: Solve for x
    x = 6,931,062.81/3,011.91
  6. Step 6: Final answer
    x = 2,301.22

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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.