Home / 1,502.35-2,074.67-1,420.54

Finding the Fourth Proportional to 1,502.35, 2,074.67 and 1,420.54

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Solution

The fourth proportional to 1,502.35, 2,074.67 and 1,420.54 is: 1,961.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,502.35 : 2,074.67 = 1,420.54 : x
  2. Step 2: Convert to fraction form
    1,502.35/2,074.67 = 1,420.54/x
  3. Step 3: Cross multiply
    1,502.35x = 2,074.67 × 1,420.54
  4. Step 4: Simplify right side
    1,502.35x = 2,947,156.91
  5. Step 5: Solve for x
    x = 2,947,156.91/1,502.35
  6. Step 6: Final answer
    x = 1,961.69

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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.