Home / 2,259.99-3,118.28-1,315.58

Finding the Fourth Proportional to 2,259.99, 3,118.28 and 1,315.58

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Solution

The fourth proportional to 2,259.99, 3,118.28 and 1,315.58 is: 1,815.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.99 : 3,118.28 = 1,315.58 : x
  2. Step 2: Convert to fraction form
    2,259.99/3,118.28 = 1,315.58/x
  3. Step 3: Cross multiply
    2,259.99x = 3,118.28 × 1,315.58
  4. Step 4: Simplify right side
    2,259.99x = 4,102,324.63
  5. Step 5: Solve for x
    x = 4,102,324.63/2,259.99
  6. Step 6: Final answer
    x = 1,815.20

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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.