Home / 3,156.58-4,352.23-2,875.65

Finding the Fourth Proportional to 3,156.58, 4,352.23 and 2,875.65

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Solution

The fourth proportional to 3,156.58, 4,352.23 and 2,875.65 is: 3,964.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.58 : 4,352.23 = 2,875.65 : x
  2. Step 2: Convert to fraction form
    3,156.58/4,352.23 = 2,875.65/x
  3. Step 3: Cross multiply
    3,156.58x = 4,352.23 × 2,875.65
  4. Step 4: Simplify right side
    3,156.58x = 12,515,490.20
  5. Step 5: Solve for x
    x = 12,515,490.20/3,156.58
  6. Step 6: Final answer
    x = 3,964.89

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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.