Home / 2,160.48-3,240.76-621.52

Finding the Fourth Proportional to 2,160.48, 3,240.76 and 621.52

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Solution

The fourth proportional to 2,160.48, 3,240.76 and 621.52 is: 932.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160.48 : 3,240.76 = 621.52 : x
  2. Step 2: Convert to fraction form
    2,160.48/3,240.76 = 621.52/x
  3. Step 3: Cross multiply
    2,160.48x = 3,240.76 × 621.52
  4. Step 4: Simplify right side
    2,160.48x = 2,014,197.16
  5. Step 5: Solve for x
    x = 2,014,197.16/2,160.48
  6. Step 6: Final answer
    x = 932.29

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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.