Home / 3,220.77-4,829.93-1,140.40

Finding the Fourth Proportional to 3,220.77, 4,829.93 and 1,140.40

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Solution

The fourth proportional to 3,220.77, 4,829.93 and 1,140.40 is: 1,710.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.77 : 4,829.93 = 1,140.40 : x
  2. Step 2: Convert to fraction form
    3,220.77/4,829.93 = 1,140.40/x
  3. Step 3: Cross multiply
    3,220.77x = 4,829.93 × 1,140.40
  4. Step 4: Simplify right side
    3,220.77x = 5,508,052.17
  5. Step 5: Solve for x
    x = 5,508,052.17/3,220.77
  6. Step 6: Final answer
    x = 1,710.17

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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.