Home / 5,617.76-8,426.40-1,668.84

Finding the Fourth Proportional to 5,617.76, 8,426.40 and 1,668.84

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Solution

The fourth proportional to 5,617.76, 8,426.40 and 1,668.84 is: 2,503.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,617.76 : 8,426.40 = 1,668.84 : x
  2. Step 2: Convert to fraction form
    5,617.76/8,426.40 = 1,668.84/x
  3. Step 3: Cross multiply
    5,617.76x = 8,426.40 × 1,668.84
  4. Step 4: Simplify right side
    5,617.76x = 14,062,313.38
  5. Step 5: Solve for x
    x = 14,062,313.38/5,617.76
  6. Step 6: Final answer
    x = 2,503.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.