Home / 7,472.48-11,208.72-2,278.31

Finding the Fourth Proportional to 7,472.48, 11,208.72 and 2,278.31

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Solution

The fourth proportional to 7,472.48, 11,208.72 and 2,278.31 is: 3,417.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,472.48 : 11,208.72 = 2,278.31 : x
  2. Step 2: Convert to fraction form
    7,472.48/11,208.72 = 2,278.31/x
  3. Step 3: Cross multiply
    7,472.48x = 11,208.72 × 2,278.31
  4. Step 4: Simplify right side
    7,472.48x = 25,536,938.86
  5. Step 5: Solve for x
    x = 25,536,938.86/7,472.48
  6. Step 6: Final answer
    x = 3,417.47

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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.