Home / 3,355.61-4,632.75-2,178.90

Finding the Fourth Proportional to 3,355.61, 4,632.75 and 2,178.90

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Solution

The fourth proportional to 3,355.61, 4,632.75 and 2,178.90 is: 3,008.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,355.61 : 4,632.75 = 2,178.90 : x
  2. Step 2: Convert to fraction form
    3,355.61/4,632.75 = 2,178.90/x
  3. Step 3: Cross multiply
    3,355.61x = 4,632.75 × 2,178.90
  4. Step 4: Simplify right side
    3,355.61x = 10,094,298.98
  5. Step 5: Solve for x
    x = 10,094,298.98/3,355.61
  6. Step 6: Final answer
    x = 3,008.19

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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.