Home / 1,515.23-2,090.51-1,234.98

Finding the Fourth Proportional to 1,515.23, 2,090.51 and 1,234.98

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Solution

The fourth proportional to 1,515.23, 2,090.51 and 1,234.98 is: 1,703.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.23 : 2,090.51 = 1,234.98 : x
  2. Step 2: Convert to fraction form
    1,515.23/2,090.51 = 1,234.98/x
  3. Step 3: Cross multiply
    1,515.23x = 2,090.51 × 1,234.98
  4. Step 4: Simplify right side
    1,515.23x = 2,581,735.43
  5. Step 5: Solve for x
    x = 2,581,735.43/1,515.23
  6. Step 6: Final answer
    x = 1,703.86

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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.