Home / 2,858.15-4,287.77-1,009.05

Finding the Fourth Proportional to 2,858.15, 4,287.77 and 1,009.05

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Solution

The fourth proportional to 2,858.15, 4,287.77 and 1,009.05 is: 1,513.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.15 : 4,287.77 = 1,009.05 : x
  2. Step 2: Convert to fraction form
    2,858.15/4,287.77 = 1,009.05/x
  3. Step 3: Cross multiply
    2,858.15x = 4,287.77 × 1,009.05
  4. Step 4: Simplify right side
    2,858.15x = 4,326,569.27
  5. Step 5: Solve for x
    x = 4,326,569.27/2,858.15
  6. Step 6: Final answer
    x = 1,513.77

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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.