Home / 2,319.77-3,201.30-1,325.40

Finding the Fourth Proportional to 2,319.77, 3,201.30 and 1,325.40

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Solution

The fourth proportional to 2,319.77, 3,201.30 and 1,325.40 is: 1,829.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.77 : 3,201.30 = 1,325.40 : x
  2. Step 2: Convert to fraction form
    2,319.77/3,201.30 = 1,325.40/x
  3. Step 3: Cross multiply
    2,319.77x = 3,201.30 × 1,325.40
  4. Step 4: Simplify right side
    2,319.77x = 4,243,003.02
  5. Step 5: Solve for x
    x = 4,243,003.02/2,319.77
  6. Step 6: Final answer
    x = 1,829.07

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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.