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Finding the Fourth Proportional to 4,398.63, 6,597.95 and 1,320.63

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Solution

The fourth proportional to 4,398.63, 6,597.95 and 1,320.63 is: 1,980.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,398.63 : 6,597.95 = 1,320.63 : x
  2. Step 2: Convert to fraction form
    4,398.63/6,597.95 = 1,320.63/x
  3. Step 3: Cross multiply
    4,398.63x = 6,597.95 × 1,320.63
  4. Step 4: Simplify right side
    4,398.63x = 8,713,450.71
  5. Step 5: Solve for x
    x = 8,713,450.71/4,398.63
  6. Step 6: Final answer
    x = 1,980.95

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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.