Home / 3,178.32-4,757.13-2,875.20

Finding the Fourth Proportional to 3,178.32, 4,757.13 and 2,875.20

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Solution

The fourth proportional to 3,178.32, 4,757.13 and 2,875.20 is: 4,303.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.32 : 4,757.13 = 2,875.20 : x
  2. Step 2: Convert to fraction form
    3,178.32/4,757.13 = 2,875.20/x
  3. Step 3: Cross multiply
    3,178.32x = 4,757.13 × 2,875.20
  4. Step 4: Simplify right side
    3,178.32x = 13,677,700.18
  5. Step 5: Solve for x
    x = 13,677,700.18/3,178.32
  6. Step 6: Final answer
    x = 4,303.44

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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.