Home / 5,281.61-7,288.65-2,923.79

Finding the Fourth Proportional to 5,281.61, 7,288.65 and 2,923.79

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Solution

The fourth proportional to 5,281.61, 7,288.65 and 2,923.79 is: 4,034.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.61 : 7,288.65 = 2,923.79 : x
  2. Step 2: Convert to fraction form
    5,281.61/7,288.65 = 2,923.79/x
  3. Step 3: Cross multiply
    5,281.61x = 7,288.65 × 2,923.79
  4. Step 4: Simplify right side
    5,281.61x = 21,310,445.54
  5. Step 5: Solve for x
    x = 21,310,445.54/5,281.61
  6. Step 6: Final answer
    x = 4,034.84

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1.5x scale

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.