Home / 7,819.64-10,788.02-4,830.28

Finding the Fourth Proportional to 7,819.64, 10,788.02 and 4,830.28

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Solution

The fourth proportional to 7,819.64, 10,788.02 and 4,830.28 is: 6,663.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.64 : 10,788.02 = 4,830.28 : x
  2. Step 2: Convert to fraction form
    7,819.64/10,788.02 = 4,830.28/x
  3. Step 3: Cross multiply
    7,819.64x = 10,788.02 × 4,830.28
  4. Step 4: Simplify right side
    7,819.64x = 52,109,157.25
  5. Step 5: Solve for x
    x = 52,109,157.25/7,819.64
  6. Step 6: Final answer
    x = 6,663.88

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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.