Home / 3,138.23-4,703.89-1,575.13

Finding the Fourth Proportional to 3,138.23, 4,703.89 and 1,575.13

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Solution

The fourth proportional to 3,138.23, 4,703.89 and 1,575.13 is: 2,360.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.23 : 4,703.89 = 1,575.13 : x
  2. Step 2: Convert to fraction form
    3,138.23/4,703.89 = 1,575.13/x
  3. Step 3: Cross multiply
    3,138.23x = 4,703.89 × 1,575.13
  4. Step 4: Simplify right side
    3,138.23x = 7,409,238.26
  5. Step 5: Solve for x
    x = 7,409,238.26/3,138.23
  6. Step 6: Final answer
    x = 2,360.96

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1.5x scale

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.