Home / 3,716.40-5,126.58-2,539.20

Finding the Fourth Proportional to 3,716.40, 5,126.58 and 2,539.20

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Solution

The fourth proportional to 3,716.40, 5,126.58 and 2,539.20 is: 3,502.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,716.40 : 5,126.58 = 2,539.20 : x
  2. Step 2: Convert to fraction form
    3,716.40/5,126.58 = 2,539.20/x
  3. Step 3: Cross multiply
    3,716.40x = 5,126.58 × 2,539.20
  4. Step 4: Simplify right side
    3,716.40x = 13,017,411.94
  5. Step 5: Solve for x
    x = 13,017,411.94/3,716.40
  6. Step 6: Final answer
    x = 3,502.69

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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.