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Finding the Fourth Proportional to 5,491.84, 7,580.16 and 3,368.08

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Solution

The fourth proportional to 5,491.84, 7,580.16 and 3,368.08 is: 4,648.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,491.84 : 7,580.16 = 3,368.08 : x
  2. Step 2: Convert to fraction form
    5,491.84/7,580.16 = 3,368.08/x
  3. Step 3: Cross multiply
    5,491.84x = 7,580.16 × 3,368.08
  4. Step 4: Simplify right side
    5,491.84x = 25,530,585.29
  5. Step 5: Solve for x
    x = 25,530,585.29/5,491.84
  6. Step 6: Final answer
    x = 4,648.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.