Home / 6,317.96-8,719.68-4,555.40

Finding the Fourth Proportional to 6,317.96, 8,719.68 and 4,555.40

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Solution

The fourth proportional to 6,317.96, 8,719.68 and 4,555.40 is: 6,287.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,317.96 : 8,719.68 = 4,555.40 : x
  2. Step 2: Convert to fraction form
    6,317.96/8,719.68 = 4,555.40/x
  3. Step 3: Cross multiply
    6,317.96x = 8,719.68 × 4,555.40
  4. Step 4: Simplify right side
    6,317.96x = 39,721,630.27
  5. Step 5: Solve for x
    x = 39,721,630.27/6,317.96
  6. Step 6: Final answer
    x = 6,287.10

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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.