Home / 3,130.16-4,317.48-1,950.80

Finding the Fourth Proportional to 3,130.16, 4,317.48 and 1,950.80

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Solution

The fourth proportional to 3,130.16, 4,317.48 and 1,950.80 is: 2,690.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.16 : 4,317.48 = 1,950.80 : x
  2. Step 2: Convert to fraction form
    3,130.16/4,317.48 = 1,950.80/x
  3. Step 3: Cross multiply
    3,130.16x = 4,317.48 × 1,950.80
  4. Step 4: Simplify right side
    3,130.16x = 8,422,539.98
  5. Step 5: Solve for x
    x = 8,422,539.98/3,130.16
  6. Step 6: Final answer
    x = 2,690.77

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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.