Home / 4,089.08-6,131.80-1,315.24

Finding the Fourth Proportional to 4,089.08, 6,131.80 and 1,315.24

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Solution

The fourth proportional to 4,089.08, 6,131.80 and 1,315.24 is: 1,972.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.08 : 6,131.80 = 1,315.24 : x
  2. Step 2: Convert to fraction form
    4,089.08/6,131.80 = 1,315.24/x
  3. Step 3: Cross multiply
    4,089.08x = 6,131.80 × 1,315.24
  4. Step 4: Simplify right side
    4,089.08x = 8,064,774.95
  5. Step 5: Solve for x
    x = 8,064,774.95/4,089.08
  6. Step 6: Final answer
    x = 1,972.27

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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.