Home / 4,905.32-7,358.70-1,618.76

Finding the Fourth Proportional to 4,905.32, 7,358.70 and 1,618.76

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Solution

The fourth proportional to 4,905.32, 7,358.70 and 1,618.76 is: 2,428.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.32 : 7,358.70 = 1,618.76 : x
  2. Step 2: Convert to fraction form
    4,905.32/7,358.70 = 1,618.76/x
  3. Step 3: Cross multiply
    4,905.32x = 7,358.70 × 1,618.76
  4. Step 4: Simplify right side
    4,905.32x = 11,911,969.21
  5. Step 5: Solve for x
    x = 11,911,969.21/4,905.32
  6. Step 6: Final answer
    x = 2,428.38

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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.