Home / 4,777.09-7,130.70-4,425.31

Finding the Fourth Proportional to 4,777.09, 7,130.70 and 4,425.31

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Solution

The fourth proportional to 4,777.09, 7,130.70 and 4,425.31 is: 6,605.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,777.09 : 7,130.70 = 4,425.31 : x
  2. Step 2: Convert to fraction form
    4,777.09/7,130.70 = 4,425.31/x
  3. Step 3: Cross multiply
    4,777.09x = 7,130.70 × 4,425.31
  4. Step 4: Simplify right side
    4,777.09x = 31,555,535.89
  5. Step 5: Solve for x
    x = 31,555,535.89/4,777.09
  6. Step 6: Final answer
    x = 6,605.60

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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.