Home / 1,543.37-2,129.85-844.73

Finding the Fourth Proportional to 1,543.37, 2,129.85 and 844.73

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Solution

The fourth proportional to 1,543.37, 2,129.85 and 844.73 is: 1,165.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543.37 : 2,129.85 = 844.73 : x
  2. Step 2: Convert to fraction form
    1,543.37/2,129.85 = 844.73/x
  3. Step 3: Cross multiply
    1,543.37x = 2,129.85 × 844.73
  4. Step 4: Simplify right side
    1,543.37x = 1,799,148.19
  5. Step 5: Solve for x
    x = 1,799,148.19/1,543.37
  6. Step 6: Final answer
    x = 1,165.73

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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.