Home / 4,155.77-6,231.78-1,521.36

Finding the Fourth Proportional to 4,155.77, 6,231.78 and 1,521.36

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Solution

The fourth proportional to 4,155.77, 6,231.78 and 1,521.36 is: 2,281.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,155.77 : 6,231.78 = 1,521.36 : x
  2. Step 2: Convert to fraction form
    4,155.77/6,231.78 = 1,521.36/x
  3. Step 3: Cross multiply
    4,155.77x = 6,231.78 × 1,521.36
  4. Step 4: Simplify right side
    4,155.77x = 9,480,780.82
  5. Step 5: Solve for x
    x = 9,480,780.82/4,155.77
  6. Step 6: Final answer
    x = 2,281.36

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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.