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Finding the Fourth Proportional to 5,864.79, 8,810.42 and 3,405.63

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Solution

The fourth proportional to 5,864.79, 8,810.42 and 3,405.63 is: 5,116.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,864.79 : 8,810.42 = 3,405.63 : x
  2. Step 2: Convert to fraction form
    5,864.79/8,810.42 = 3,405.63/x
  3. Step 3: Cross multiply
    5,864.79x = 8,810.42 × 3,405.63
  4. Step 4: Simplify right side
    5,864.79x = 30,005,013.64
  5. Step 5: Solve for x
    x = 30,005,013.64/5,864.79
  6. Step 6: Final answer
    x = 5,116.13

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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.