Home / 2,259.36-3,389.04-1,105.20

Finding the Fourth Proportional to 2,259.36, 3,389.04 and 1,105.20

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Solution

The fourth proportional to 2,259.36, 3,389.04 and 1,105.20 is: 1,657.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.36 : 3,389.04 = 1,105.20 : x
  2. Step 2: Convert to fraction form
    2,259.36/3,389.04 = 1,105.20/x
  3. Step 3: Cross multiply
    2,259.36x = 3,389.04 × 1,105.20
  4. Step 4: Simplify right side
    2,259.36x = 3,745,567.01
  5. Step 5: Solve for x
    x = 3,745,567.01/2,259.36
  6. Step 6: Final answer
    x = 1,657.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.