Home / 2,319.32-3,201.12-1,612.64

Finding the Fourth Proportional to 2,319.32, 3,201.12 and 1,612.64

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Solution

The fourth proportional to 2,319.32, 3,201.12 and 1,612.64 is: 2,225.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.32 : 3,201.12 = 1,612.64 : x
  2. Step 2: Convert to fraction form
    2,319.32/3,201.12 = 1,612.64/x
  3. Step 3: Cross multiply
    2,319.32x = 3,201.12 × 1,612.64
  4. Step 4: Simplify right side
    2,319.32x = 5,162,254.16
  5. Step 5: Solve for x
    x = 5,162,254.16/2,319.32
  6. Step 6: Final answer
    x = 2,225.76

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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.