Home / 4,749-7,124.64-2,151.24

Finding the Fourth Proportional to 4,749, 7,124.64 and 2,151.24

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Solution

The fourth proportional to 4,749, 7,124.64 and 2,151.24 is: 3,227.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,749 : 7,124.64 = 2,151.24 : x
  2. Step 2: Convert to fraction form
    4,749/7,124.64 = 2,151.24/x
  3. Step 3: Cross multiply
    4,749x = 7,124.64 × 2,151.24
  4. Step 4: Simplify right side
    4,749x = 15,326,810.55
  5. Step 5: Solve for x
    x = 15,326,810.55/4,749
  6. Step 6: Final answer
    x = 3,227.38

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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.