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Finding the Fourth Proportional to 5,808.52, 8,713.86 and 1,913.20

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Solution

The fourth proportional to 5,808.52, 8,713.86 and 1,913.20 is: 2,870.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,808.52 : 8,713.86 = 1,913.20 : x
  2. Step 2: Convert to fraction form
    5,808.52/8,713.86 = 1,913.20/x
  3. Step 3: Cross multiply
    5,808.52x = 8,713.86 × 1,913.20
  4. Step 4: Simplify right side
    5,808.52x = 16,671,356.95
  5. Step 5: Solve for x
    x = 16,671,356.95/5,808.52
  6. Step 6: Final answer
    x = 2,870.16

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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.