Home / 5,276.57-7,281.63-2,918.66

Finding the Fourth Proportional to 5,276.57, 7,281.63 and 2,918.66

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Solution

The fourth proportional to 5,276.57, 7,281.63 and 2,918.66 is: 4,027.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.57 : 7,281.63 = 2,918.66 : x
  2. Step 2: Convert to fraction form
    5,276.57/7,281.63 = 2,918.66/x
  3. Step 3: Cross multiply
    5,276.57x = 7,281.63 × 2,918.66
  4. Step 4: Simplify right side
    5,276.57x = 21,252,565.81
  5. Step 5: Solve for x
    x = 21,252,565.81/5,276.57
  6. Step 6: Final answer
    x = 4,027.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.