Home / 2,331.21-3,217.91-1,545.51

Finding the Fourth Proportional to 2,331.21, 3,217.91 and 1,545.51

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Solution

The fourth proportional to 2,331.21, 3,217.91 and 1,545.51 is: 2,133.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331.21 : 3,217.91 = 1,545.51 : x
  2. Step 2: Convert to fraction form
    2,331.21/3,217.91 = 1,545.51/x
  3. Step 3: Cross multiply
    2,331.21x = 3,217.91 × 1,545.51
  4. Step 4: Simplify right side
    2,331.21x = 4,973,312.08
  5. Step 5: Solve for x
    x = 4,973,312.08/2,331.21
  6. Step 6: Final answer
    x = 2,133.36

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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.