Home / 5,248.64-7,243.16-2,890.86

Finding the Fourth Proportional to 5,248.64, 7,243.16 and 2,890.86

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Solution

The fourth proportional to 5,248.64, 7,243.16 and 2,890.86 is: 3,989.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,248.64 : 7,243.16 = 2,890.86 : x
  2. Step 2: Convert to fraction form
    5,248.64/7,243.16 = 2,890.86/x
  3. Step 3: Cross multiply
    5,248.64x = 7,243.16 × 2,890.86
  4. Step 4: Simplify right side
    5,248.64x = 20,938,947.06
  5. Step 5: Solve for x
    x = 20,938,947.06/5,248.64
  6. Step 6: Final answer
    x = 3,989.41

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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.