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Finding the Fourth Proportional to 4,398, 6,597.54 and 1,320

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Solution

The fourth proportional to 4,398, 6,597.54 and 1,320 is: 1,980.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,398 : 6,597.54 = 1,320 : x
  2. Step 2: Convert to fraction form
    4,398/6,597.54 = 1,320/x
  3. Step 3: Cross multiply
    4,398x = 6,597.54 × 1,320
  4. Step 4: Simplify right side
    4,398x = 8,708,752.80
  5. Step 5: Solve for x
    x = 8,708,752.80/4,398
  6. Step 6: Final answer
    x = 1,980.16

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.