Home / 5,426.64-8,140.55-1,728.01

Finding the Fourth Proportional to 5,426.64, 8,140.55 and 1,728.01

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Solution

The fourth proportional to 5,426.64, 8,140.55 and 1,728.01 is: 2,592.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.64 : 8,140.55 = 1,728.01 : x
  2. Step 2: Convert to fraction form
    5,426.64/8,140.55 = 1,728.01/x
  3. Step 3: Cross multiply
    5,426.64x = 8,140.55 × 1,728.01
  4. Step 4: Simplify right side
    5,426.64x = 14,066,951.81
  5. Step 5: Solve for x
    x = 14,066,951.81/5,426.64
  6. Step 6: Final answer
    x = 2,592.20

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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.