Home / 3,513.60-5,263.20-2,645.28

Finding the Fourth Proportional to 3,513.60, 5,263.20 and 2,645.28

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Solution

The fourth proportional to 3,513.60, 5,263.20 and 2,645.28 is: 3,962.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.60 : 5,263.20 = 2,645.28 : x
  2. Step 2: Convert to fraction form
    3,513.60/5,263.20 = 2,645.28/x
  3. Step 3: Cross multiply
    3,513.60x = 5,263.20 × 2,645.28
  4. Step 4: Simplify right side
    3,513.60x = 13,922,637.70
  5. Step 5: Solve for x
    x = 13,922,637.70/3,513.60
  6. Step 6: Final answer
    x = 3,962.50

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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.