Home / 7,479.56-11,219.76-3,777.45

Finding the Fourth Proportional to 7,479.56, 11,219.76 and 3,777.45

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Solution

The fourth proportional to 7,479.56, 11,219.76 and 3,777.45 is: 5,666.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.56 : 11,219.76 = 3,777.45 : x
  2. Step 2: Convert to fraction form
    7,479.56/11,219.76 = 3,777.45/x
  3. Step 3: Cross multiply
    7,479.56x = 11,219.76 × 3,777.45
  4. Step 4: Simplify right side
    7,479.56x = 42,382,082.41
  5. Step 5: Solve for x
    x = 42,382,082.41/7,479.56
  6. Step 6: Final answer
    x = 5,666.39

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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.