Home / 4,420.40-6,631.40-1,955.30

Finding the Fourth Proportional to 4,420.40, 6,631.40 and 1,955.30

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Solution

The fourth proportional to 4,420.40, 6,631.40 and 1,955.30 is: 2,933.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,420.40 : 6,631.40 = 1,955.30 : x
  2. Step 2: Convert to fraction form
    4,420.40/6,631.40 = 1,955.30/x
  3. Step 3: Cross multiply
    4,420.40x = 6,631.40 × 1,955.30
  4. Step 4: Simplify right side
    4,420.40x = 12,966,333.49
  5. Step 5: Solve for x
    x = 12,966,333.49/4,420.40
  6. Step 6: Final answer
    x = 2,933.30

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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.