Home / 4,285.24-6,428.85-1,323.57

Finding the Fourth Proportional to 4,285.24, 6,428.85 and 1,323.57

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Solution

The fourth proportional to 4,285.24, 6,428.85 and 1,323.57 is: 1,985.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,285.24 : 6,428.85 = 1,323.57 : x
  2. Step 2: Convert to fraction form
    4,285.24/6,428.85 = 1,323.57/x
  3. Step 3: Cross multiply
    4,285.24x = 6,428.85 × 1,323.57
  4. Step 4: Simplify right side
    4,285.24x = 8,509,032.99
  5. Step 5: Solve for x
    x = 8,509,032.99/4,285.24
  6. Step 6: Final answer
    x = 1,985.66

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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.