Home / 1,518.93-2,289.26-1,434.15

Finding the Fourth Proportional to 1,518.93, 2,289.26 and 1,434.15

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Solution

The fourth proportional to 1,518.93, 2,289.26 and 1,434.15 is: 2,161.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.93 : 2,289.26 = 1,434.15 : x
  2. Step 2: Convert to fraction form
    1,518.93/2,289.26 = 1,434.15/x
  3. Step 3: Cross multiply
    1,518.93x = 2,289.26 × 1,434.15
  4. Step 4: Simplify right side
    1,518.93x = 3,283,145.81
  5. Step 5: Solve for x
    x = 3,283,145.81/1,518.93
  6. Step 6: Final answer
    x = 2,161.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.