Home / 5,272.50-7,913.52-2,809.40

Finding the Fourth Proportional to 5,272.50, 7,913.52 and 2,809.40

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Solution

The fourth proportional to 5,272.50, 7,913.52 and 2,809.40 is: 4,216.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.50 : 7,913.52 = 2,809.40 : x
  2. Step 2: Convert to fraction form
    5,272.50/7,913.52 = 2,809.40/x
  3. Step 3: Cross multiply
    5,272.50x = 7,913.52 × 2,809.40
  4. Step 4: Simplify right side
    5,272.50x = 22,232,243.09
  5. Step 5: Solve for x
    x = 22,232,243.09/5,272.50
  6. Step 6: Final answer
    x = 4,216.64

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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.