Home / 1,543.48-2,320.23-1,238.67

Finding the Fourth Proportional to 1,543.48, 2,320.23 and 1,238.67

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Solution

The fourth proportional to 1,543.48, 2,320.23 and 1,238.67 is: 1,862.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543.48 : 2,320.23 = 1,238.67 : x
  2. Step 2: Convert to fraction form
    1,543.48/2,320.23 = 1,238.67/x
  3. Step 3: Cross multiply
    1,543.48x = 2,320.23 × 1,238.67
  4. Step 4: Simplify right side
    1,543.48x = 2,874,003.94
  5. Step 5: Solve for x
    x = 2,874,003.94/1,543.48
  6. Step 6: Final answer
    x = 1,862.03

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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.