Home / 5,369.70-8,011.47-4,777.68

Finding the Fourth Proportional to 5,369.70, 8,011.47 and 4,777.68

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Solution

The fourth proportional to 5,369.70, 8,011.47 and 4,777.68 is: 7,128.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,369.70 : 8,011.47 = 4,777.68 : x
  2. Step 2: Convert to fraction form
    5,369.70/8,011.47 = 4,777.68/x
  3. Step 3: Cross multiply
    5,369.70x = 8,011.47 × 4,777.68
  4. Step 4: Simplify right side
    5,369.70x = 38,276,239.99
  5. Step 5: Solve for x
    x = 38,276,239.99/5,369.70
  6. Step 6: Final answer
    x = 7,128.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.