Home / 3,435.40-5,153.10-1,973.80

Finding the Fourth Proportional to 3,435.40, 5,153.10 and 1,973.80

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Solution

The fourth proportional to 3,435.40, 5,153.10 and 1,973.80 is: 2,960.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,435.40 : 5,153.10 = 1,973.80 : x
  2. Step 2: Convert to fraction form
    3,435.40/5,153.10 = 1,973.80/x
  3. Step 3: Cross multiply
    3,435.40x = 5,153.10 × 1,973.80
  4. Step 4: Simplify right side
    3,435.40x = 10,171,188.78
  5. Step 5: Solve for x
    x = 10,171,188.78/3,435.40
  6. Step 6: Final answer
    x = 2,960.70

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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.