Home / 2,289.04-3,433.74-645.60

Finding the Fourth Proportional to 2,289.04, 3,433.74 and 645.60

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Solution

The fourth proportional to 2,289.04, 3,433.74 and 645.60 is: 968.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.04 : 3,433.74 = 645.60 : x
  2. Step 2: Convert to fraction form
    2,289.04/3,433.74 = 645.60/x
  3. Step 3: Cross multiply
    2,289.04x = 3,433.74 × 645.60
  4. Step 4: Simplify right side
    2,289.04x = 2,216,822.54
  5. Step 5: Solve for x
    x = 2,216,822.54/2,289.04
  6. Step 6: Final answer
    x = 968.45

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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.