Home / 5,130.50-7,686.90-4,007.03

Finding the Fourth Proportional to 5,130.50, 7,686.90 and 4,007.03

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Solution

The fourth proportional to 5,130.50, 7,686.90 and 4,007.03 is: 6,003.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.50 : 7,686.90 = 4,007.03 : x
  2. Step 2: Convert to fraction form
    5,130.50/7,686.90 = 4,007.03/x
  3. Step 3: Cross multiply
    5,130.50x = 7,686.90 × 4,007.03
  4. Step 4: Simplify right side
    5,130.50x = 30,801,638.91
  5. Step 5: Solve for x
    x = 30,801,638.91/5,130.50
  6. Step 6: Final answer
    x = 6,003.63

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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.