Home / 2,858.15-4,287.23-1,877.16

Finding the Fourth Proportional to 2,858.15, 4,287.23 and 1,877.16

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Solution

The fourth proportional to 2,858.15, 4,287.23 and 1,877.16 is: 2,815.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.15 : 4,287.23 = 1,877.16 : x
  2. Step 2: Convert to fraction form
    2,858.15/4,287.23 = 1,877.16/x
  3. Step 3: Cross multiply
    2,858.15x = 4,287.23 × 1,877.16
  4. Step 4: Simplify right side
    2,858.15x = 8,047,807.28
  5. Step 5: Solve for x
    x = 8,047,807.28/2,858.15
  6. Step 6: Final answer
    x = 2,815.74

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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.