Home / 6,420.02-8,859.20-3,624.98

Finding the Fourth Proportional to 6,420.02, 8,859.20 and 3,624.98

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Solution

The fourth proportional to 6,420.02, 8,859.20 and 3,624.98 is: 5,002.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420.02 : 8,859.20 = 3,624.98 : x
  2. Step 2: Convert to fraction form
    6,420.02/8,859.20 = 3,624.98/x
  3. Step 3: Cross multiply
    6,420.02x = 8,859.20 × 3,624.98
  4. Step 4: Simplify right side
    6,420.02x = 32,114,422.82
  5. Step 5: Solve for x
    x = 32,114,422.82/6,420.02
  6. Step 6: Final answer
    x = 5,002.23

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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.