Home / 3,455.95-4,767.85-2,127.35

Finding the Fourth Proportional to 3,455.95, 4,767.85 and 2,127.35

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Solution

The fourth proportional to 3,455.95, 4,767.85 and 2,127.35 is: 2,934.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.95 : 4,767.85 = 2,127.35 : x
  2. Step 2: Convert to fraction form
    3,455.95/4,767.85 = 2,127.35/x
  3. Step 3: Cross multiply
    3,455.95x = 4,767.85 × 2,127.35
  4. Step 4: Simplify right side
    3,455.95x = 10,142,861.86
  5. Step 5: Solve for x
    x = 10,142,861.86/3,455.95
  6. Step 6: Final answer
    x = 2,934.90

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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.