Home / 4,853.16-7,281-1,390.68

Finding the Fourth Proportional to 4,853.16, 7,281 and 1,390.68

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Solution

The fourth proportional to 4,853.16, 7,281 and 1,390.68 is: 2,086.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,853.16 : 7,281 = 1,390.68 : x
  2. Step 2: Convert to fraction form
    4,853.16/7,281 = 1,390.68/x
  3. Step 3: Cross multiply
    4,853.16x = 7,281 × 1,390.68
  4. Step 4: Simplify right side
    4,853.16x = 10,125,541.08
  5. Step 5: Solve for x
    x = 10,125,541.08/4,853.16
  6. Step 6: Final answer
    x = 2,086.38

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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.