Home / 6,389.30-8,814.79-4,714.70

Finding the Fourth Proportional to 6,389.30, 8,814.79 and 4,714.70

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Solution

The fourth proportional to 6,389.30, 8,814.79 and 4,714.70 is: 6,504.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,389.30 : 8,814.79 = 4,714.70 : x
  2. Step 2: Convert to fraction form
    6,389.30/8,814.79 = 4,714.70/x
  3. Step 3: Cross multiply
    6,389.30x = 8,814.79 × 4,714.70
  4. Step 4: Simplify right side
    6,389.30x = 41,559,090.41
  5. Step 5: Solve for x
    x = 41,559,090.41/6,389.30
  6. Step 6: Final answer
    x = 6,504.48

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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.