Home / 2,864.80-4,297.40-1,133.20

Finding the Fourth Proportional to 2,864.80, 4,297.40 and 1,133.20

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Solution

The fourth proportional to 2,864.80, 4,297.40 and 1,133.20 is: 1,699.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.80 : 4,297.40 = 1,133.20 : x
  2. Step 2: Convert to fraction form
    2,864.80/4,297.40 = 1,133.20/x
  3. Step 3: Cross multiply
    2,864.80x = 4,297.40 × 1,133.20
  4. Step 4: Simplify right side
    2,864.80x = 4,869,813.68
  5. Step 5: Solve for x
    x = 4,869,813.68/2,864.80
  6. Step 6: Final answer
    x = 1,699.88

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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.