Home / 3,005.59-4,509.30-1,057.80

Finding the Fourth Proportional to 3,005.59, 4,509.30 and 1,057.80

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Solution

The fourth proportional to 3,005.59, 4,509.30 and 1,057.80 is: 1,587.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,005.59 : 4,509.30 = 1,057.80 : x
  2. Step 2: Convert to fraction form
    3,005.59/4,509.30 = 1,057.80/x
  3. Step 3: Cross multiply
    3,005.59x = 4,509.30 × 1,057.80
  4. Step 4: Simplify right side
    3,005.59x = 4,769,937.54
  5. Step 5: Solve for x
    x = 4,769,937.54/3,005.59
  6. Step 6: Final answer
    x = 1,587.02

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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.