Home / 2,154.40-3,232.10-693.50

Finding the Fourth Proportional to 2,154.40, 3,232.10 and 693.50

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Solution

The fourth proportional to 2,154.40, 3,232.10 and 693.50 is: 1,040.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.40 : 3,232.10 = 693.50 : x
  2. Step 2: Convert to fraction form
    2,154.40/3,232.10 = 693.50/x
  3. Step 3: Cross multiply
    2,154.40x = 3,232.10 × 693.50
  4. Step 4: Simplify right side
    2,154.40x = 2,241,446.92
  5. Step 5: Solve for x
    x = 2,241,446.92/2,154.40
  6. Step 6: Final answer
    x = 1,040.41

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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.