Home / 3,240.64-4,859.75-1,160.08

Finding the Fourth Proportional to 3,240.64, 4,859.75 and 1,160.08

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Solution

The fourth proportional to 3,240.64, 4,859.75 and 1,160.08 is: 1,739.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.64 : 4,859.75 = 1,160.08 : x
  2. Step 2: Convert to fraction form
    3,240.64/4,859.75 = 1,160.08/x
  3. Step 3: Cross multiply
    3,240.64x = 4,859.75 × 1,160.08
  4. Step 4: Simplify right side
    3,240.64x = 5,637,698.78
  5. Step 5: Solve for x
    x = 5,637,698.78/3,240.64
  6. Step 6: Final answer
    x = 1,739.69

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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.