Home / 7,428.83-10,256.45-4,780.84

Finding the Fourth Proportional to 7,428.83, 10,256.45 and 4,780.84

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Solution

The fourth proportional to 7,428.83, 10,256.45 and 4,780.84 is: 6,600.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.83 : 10,256.45 = 4,780.84 : x
  2. Step 2: Convert to fraction form
    7,428.83/10,256.45 = 4,780.84/x
  3. Step 3: Cross multiply
    7,428.83x = 10,256.45 × 4,780.84
  4. Step 4: Simplify right side
    7,428.83x = 49,034,422.51
  5. Step 5: Solve for x
    x = 49,034,422.51/7,428.83
  6. Step 6: Final answer
    x = 6,600.56

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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.