Home / 3,220.48-4,830.54-1,140.40

Finding the Fourth Proportional to 3,220.48, 4,830.54 and 1,140.40

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Solution

The fourth proportional to 3,220.48, 4,830.54 and 1,140.40 is: 1,710.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.48 : 4,830.54 = 1,140.40 : x
  2. Step 2: Convert to fraction form
    3,220.48/4,830.54 = 1,140.40/x
  3. Step 3: Cross multiply
    3,220.48x = 4,830.54 × 1,140.40
  4. Step 4: Simplify right side
    3,220.48x = 5,508,747.82
  5. Step 5: Solve for x
    x = 5,508,747.82/3,220.48
  6. Step 6: Final answer
    x = 1,710.54

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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.