Home / 2,291.26-3,162.10-1,395.35

Finding the Fourth Proportional to 2,291.26, 3,162.10 and 1,395.35

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Solution

The fourth proportional to 2,291.26, 3,162.10 and 1,395.35 is: 1,925.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.26 : 3,162.10 = 1,395.35 : x
  2. Step 2: Convert to fraction form
    2,291.26/3,162.10 = 1,395.35/x
  3. Step 3: Cross multiply
    2,291.26x = 3,162.10 × 1,395.35
  4. Step 4: Simplify right side
    2,291.26x = 4,412,236.24
  5. Step 5: Solve for x
    x = 4,412,236.24/2,291.26
  6. Step 6: Final answer
    x = 1,925.68

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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.