Home / 3,209.60-4,812.53-1,564.49

Finding the Fourth Proportional to 3,209.60, 4,812.53 and 1,564.49

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Solution

The fourth proportional to 3,209.60, 4,812.53 and 1,564.49 is: 2,345.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.60 : 4,812.53 = 1,564.49 : x
  2. Step 2: Convert to fraction form
    3,209.60/4,812.53 = 1,564.49/x
  3. Step 3: Cross multiply
    3,209.60x = 4,812.53 × 1,564.49
  4. Step 4: Simplify right side
    3,209.60x = 7,529,123.17
  5. Step 5: Solve for x
    x = 7,529,123.17/3,209.60
  6. Step 6: Final answer
    x = 2,345.82

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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.