Home / 4,242.56-6,363-1,320.16

Finding the Fourth Proportional to 4,242.56, 6,363 and 1,320.16

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Solution

The fourth proportional to 4,242.56, 6,363 and 1,320.16 is: 1,979.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,242.56 : 6,363 = 1,320.16 : x
  2. Step 2: Convert to fraction form
    4,242.56/6,363 = 1,320.16/x
  3. Step 3: Cross multiply
    4,242.56x = 6,363 × 1,320.16
  4. Step 4: Simplify right side
    4,242.56x = 8,400,178.08
  5. Step 5: Solve for x
    x = 8,400,178.08/4,242.56
  6. Step 6: Final answer
    x = 1,979.98

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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.