Home / 3,320.74-4,977.91-1,240.17

Finding the Fourth Proportional to 3,320.74, 4,977.91 and 1,240.17

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Solution

The fourth proportional to 3,320.74, 4,977.91 and 1,240.17 is: 1,859.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.74 : 4,977.91 = 1,240.17 : x
  2. Step 2: Convert to fraction form
    3,320.74/4,977.91 = 1,240.17/x
  3. Step 3: Cross multiply
    3,320.74x = 4,977.91 × 1,240.17
  4. Step 4: Simplify right side
    3,320.74x = 6,173,454.64
  5. Step 5: Solve for x
    x = 6,173,454.64/3,320.74
  6. Step 6: Final answer
    x = 1,859.06

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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.