Home / 4,281.36-6,420.12-1,359.12

Finding the Fourth Proportional to 4,281.36, 6,420.12 and 1,359.12

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Solution

The fourth proportional to 4,281.36, 6,420.12 and 1,359.12 is: 2,038.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,281.36 : 6,420.12 = 1,359.12 : x
  2. Step 2: Convert to fraction form
    4,281.36/6,420.12 = 1,359.12/x
  3. Step 3: Cross multiply
    4,281.36x = 6,420.12 × 1,359.12
  4. Step 4: Simplify right side
    4,281.36x = 8,725,713.49
  5. Step 5: Solve for x
    x = 8,725,713.49/4,281.36
  6. Step 6: Final answer
    x = 2,038.07

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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.