Home / 2,259.60-3,120.08-1,676.40

Finding the Fourth Proportional to 2,259.60, 3,120.08 and 1,676.40

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Solution

The fourth proportional to 2,259.60, 3,120.08 and 1,676.40 is: 2,314.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.60 : 3,120.08 = 1,676.40 : x
  2. Step 2: Convert to fraction form
    2,259.60/3,120.08 = 1,676.40/x
  3. Step 3: Cross multiply
    2,259.60x = 3,120.08 × 1,676.40
  4. Step 4: Simplify right side
    2,259.60x = 5,230,502.11
  5. Step 5: Solve for x
    x = 5,230,502.11/2,259.60
  6. Step 6: Final answer
    x = 2,314.79

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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.