Home / 2,333.47-3,220.19-1,285.53

Finding the Fourth Proportional to 2,333.47, 3,220.19 and 1,285.53

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Solution

The fourth proportional to 2,333.47, 3,220.19 and 1,285.53 is: 1,774.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,333.47 : 3,220.19 = 1,285.53 : x
  2. Step 2: Convert to fraction form
    2,333.47/3,220.19 = 1,285.53/x
  3. Step 3: Cross multiply
    2,333.47x = 3,220.19 × 1,285.53
  4. Step 4: Simplify right side
    2,333.47x = 4,139,644.42
  5. Step 5: Solve for x
    x = 4,139,644.42/2,333.47
  6. Step 6: Final answer
    x = 1,774.03

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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.