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Finding the Fourth Proportional to 4,888.79, 7,333.18 and 1,378.79

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Solution

The fourth proportional to 4,888.79, 7,333.18 and 1,378.79 is: 2,068.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,888.79 : 7,333.18 = 1,378.79 : x
  2. Step 2: Convert to fraction form
    4,888.79/7,333.18 = 1,378.79/x
  3. Step 3: Cross multiply
    4,888.79x = 7,333.18 × 1,378.79
  4. Step 4: Simplify right side
    4,888.79x = 10,110,915.25
  5. Step 5: Solve for x
    x = 10,110,915.25/4,888.79
  6. Step 6: Final answer
    x = 2,068.18

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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.