Home / 5,148.80-7,100.76-4,153.76

Finding the Fourth Proportional to 5,148.80, 7,100.76 and 4,153.76

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Solution

The fourth proportional to 5,148.80, 7,100.76 and 4,153.76 is: 5,728.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.80 : 7,100.76 = 4,153.76 : x
  2. Step 2: Convert to fraction form
    5,148.80/7,100.76 = 4,153.76/x
  3. Step 3: Cross multiply
    5,148.80x = 7,100.76 × 4,153.76
  4. Step 4: Simplify right side
    5,148.80x = 29,494,852.86
  5. Step 5: Solve for x
    x = 29,494,852.86/5,148.80
  6. Step 6: Final answer
    x = 5,728.49

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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.