Home / 4,202.16-6,303.96-1,280.40

Finding the Fourth Proportional to 4,202.16, 6,303.96 and 1,280.40

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Solution

The fourth proportional to 4,202.16, 6,303.96 and 1,280.40 is: 1,920.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,202.16 : 6,303.96 = 1,280.40 : x
  2. Step 2: Convert to fraction form
    4,202.16/6,303.96 = 1,280.40/x
  3. Step 3: Cross multiply
    4,202.16x = 6,303.96 × 1,280.40
  4. Step 4: Simplify right side
    4,202.16x = 8,071,590.38
  5. Step 5: Solve for x
    x = 8,071,590.38/4,202.16
  6. Step 6: Final answer
    x = 1,920.82

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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.