Home / 7,788.79-10,748.04-4,251.28

Finding the Fourth Proportional to 7,788.79, 10,748.04 and 4,251.28

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Solution

The fourth proportional to 7,788.79, 10,748.04 and 4,251.28 is: 5,866.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788.79 : 10,748.04 = 4,251.28 : x
  2. Step 2: Convert to fraction form
    7,788.79/10,748.04 = 4,251.28/x
  3. Step 3: Cross multiply
    7,788.79x = 10,748.04 × 4,251.28
  4. Step 4: Simplify right side
    7,788.79x = 45,692,927.49
  5. Step 5: Solve for x
    x = 45,692,927.49/7,788.79
  6. Step 6: Final answer
    x = 5,866.50

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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.