Home / 2,259.36-3,120.90-1,818.93

Finding the Fourth Proportional to 2,259.36, 3,120.90 and 1,818.93

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Solution

The fourth proportional to 2,259.36, 3,120.90 and 1,818.93 is: 2,512.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.36 : 3,120.90 = 1,818.93 : x
  2. Step 2: Convert to fraction form
    2,259.36/3,120.90 = 1,818.93/x
  3. Step 3: Cross multiply
    2,259.36x = 3,120.90 × 1,818.93
  4. Step 4: Simplify right side
    2,259.36x = 5,676,698.64
  5. Step 5: Solve for x
    x = 5,676,698.64/2,259.36
  6. Step 6: Final answer
    x = 2,512.53

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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.