Home / 6,487.02-8,954.35-5,620.86

Finding the Fourth Proportional to 6,487.02, 8,954.35 and 5,620.86

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Solution

The fourth proportional to 6,487.02, 8,954.35 and 5,620.86 is: 7,758.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,487.02 : 8,954.35 = 5,620.86 : x
  2. Step 2: Convert to fraction form
    6,487.02/8,954.35 = 5,620.86/x
  3. Step 3: Cross multiply
    6,487.02x = 8,954.35 × 5,620.86
  4. Step 4: Simplify right side
    6,487.02x = 50,331,133.69
  5. Step 5: Solve for x
    x = 50,331,133.69/6,487.02
  6. Step 6: Final answer
    x = 7,758.74

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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.