Home / 2,515.18-3,470.44-1,395.88

Finding the Fourth Proportional to 2,515.18, 3,470.44 and 1,395.88

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Solution

The fourth proportional to 2,515.18, 3,470.44 and 1,395.88 is: 1,926.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.18 : 3,470.44 = 1,395.88 : x
  2. Step 2: Convert to fraction form
    2,515.18/3,470.44 = 1,395.88/x
  3. Step 3: Cross multiply
    2,515.18x = 3,470.44 × 1,395.88
  4. Step 4: Simplify right side
    2,515.18x = 4,844,317.79
  5. Step 5: Solve for x
    x = 4,844,317.79/2,515.18
  6. Step 6: Final answer
    x = 1,926.03

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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.