Home / 2,409.40-3,325.60-1,572.18

Finding the Fourth Proportional to 2,409.40, 3,325.60 and 1,572.18

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Solution

The fourth proportional to 2,409.40, 3,325.60 and 1,572.18 is: 2,170.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,409.40 : 3,325.60 = 1,572.18 : x
  2. Step 2: Convert to fraction form
    2,409.40/3,325.60 = 1,572.18/x
  3. Step 3: Cross multiply
    2,409.40x = 3,325.60 × 1,572.18
  4. Step 4: Simplify right side
    2,409.40x = 5,228,441.81
  5. Step 5: Solve for x
    x = 5,228,441.81/2,409.40
  6. Step 6: Final answer
    x = 2,170.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.