Home / 5,721.60-7,890.30-3,483.57

Finding the Fourth Proportional to 5,721.60, 7,890.30 and 3,483.57

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Solution

The fourth proportional to 5,721.60, 7,890.30 and 3,483.57 is: 4,803.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,721.60 : 7,890.30 = 3,483.57 : x
  2. Step 2: Convert to fraction form
    5,721.60/7,890.30 = 3,483.57/x
  3. Step 3: Cross multiply
    5,721.60x = 7,890.30 × 3,483.57
  4. Step 4: Simplify right side
    5,721.60x = 27,486,412.37
  5. Step 5: Solve for x
    x = 27,486,412.37/5,721.60
  6. Step 6: Final answer
    x = 4,803.97

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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.