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Finding the Fourth Proportional to 5,364.32, 8,047.12 and 1,854.64

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Solution

The fourth proportional to 5,364.32, 8,047.12 and 1,854.64 is: 2,782.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,364.32 : 8,047.12 = 1,854.64 : x
  2. Step 2: Convert to fraction form
    5,364.32/8,047.12 = 1,854.64/x
  3. Step 3: Cross multiply
    5,364.32x = 8,047.12 × 1,854.64
  4. Step 4: Simplify right side
    5,364.32x = 14,924,510.64
  5. Step 5: Solve for x
    x = 14,924,510.64/5,364.32
  6. Step 6: Final answer
    x = 2,782.18

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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.