Home / 3,463.32-4,778.20-1,970.87

Finding the Fourth Proportional to 3,463.32, 4,778.20 and 1,970.87

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Solution

The fourth proportional to 3,463.32, 4,778.20 and 1,970.87 is: 2,719.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,463.32 : 4,778.20 = 1,970.87 : x
  2. Step 2: Convert to fraction form
    3,463.32/4,778.20 = 1,970.87/x
  3. Step 3: Cross multiply
    3,463.32x = 4,778.20 × 1,970.87
  4. Step 4: Simplify right side
    3,463.32x = 9,417,187.14
  5. Step 5: Solve for x
    x = 9,417,187.14/3,463.32
  6. Step 6: Final answer
    x = 2,719.12

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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.