Home / 4,139.82-6,210.12-1,178.46

Finding the Fourth Proportional to 4,139.82, 6,210.12 and 1,178.46

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Solution

The fourth proportional to 4,139.82, 6,210.12 and 1,178.46 is: 1,767.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.82 : 6,210.12 = 1,178.46 : x
  2. Step 2: Convert to fraction form
    4,139.82/6,210.12 = 1,178.46/x
  3. Step 3: Cross multiply
    4,139.82x = 6,210.12 × 1,178.46
  4. Step 4: Simplify right side
    4,139.82x = 7,318,378.02
  5. Step 5: Solve for x
    x = 7,318,378.02/4,139.82
  6. Step 6: Final answer
    x = 1,767.80

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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.