Home / 1,545.22-2,317.83-391.06

Finding the Fourth Proportional to 1,545.22, 2,317.83 and 391.06

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Solution

The fourth proportional to 1,545.22, 2,317.83 and 391.06 is: 586.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.22 : 2,317.83 = 391.06 : x
  2. Step 2: Convert to fraction form
    1,545.22/2,317.83 = 391.06/x
  3. Step 3: Cross multiply
    1,545.22x = 2,317.83 × 391.06
  4. Step 4: Simplify right side
    1,545.22x = 906,410.60
  5. Step 5: Solve for x
    x = 906,410.60/1,545.22
  6. Step 6: Final answer
    x = 586.59

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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.