Home / 5,615.64-7,750.30-4,669.80

Finding the Fourth Proportional to 5,615.64, 7,750.30 and 4,669.80

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Solution

The fourth proportional to 5,615.64, 7,750.30 and 4,669.80 is: 6,444.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.64 : 7,750.30 = 4,669.80 : x
  2. Step 2: Convert to fraction form
    5,615.64/7,750.30 = 4,669.80/x
  3. Step 3: Cross multiply
    5,615.64x = 7,750.30 × 4,669.80
  4. Step 4: Simplify right side
    5,615.64x = 36,192,350.94
  5. Step 5: Solve for x
    x = 36,192,350.94/5,615.64
  6. Step 6: Final answer
    x = 6,444.92

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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.