Home / 3,157.63-4,359.41-2,807.35

Finding the Fourth Proportional to 3,157.63, 4,359.41 and 2,807.35

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Solution

The fourth proportional to 3,157.63, 4,359.41 and 2,807.35 is: 3,875.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.63 : 4,359.41 = 2,807.35 : x
  2. Step 2: Convert to fraction form
    3,157.63/4,359.41 = 2,807.35/x
  3. Step 3: Cross multiply
    3,157.63x = 4,359.41 × 2,807.35
  4. Step 4: Simplify right side
    3,157.63x = 12,238,365.18
  5. Step 5: Solve for x
    x = 12,238,365.18/3,157.63
  6. Step 6: Final answer
    x = 3,875.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.