Home / 4,742.02-7,113.07-1,819.63

Finding the Fourth Proportional to 4,742.02, 7,113.07 and 1,819.63

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Solution

The fourth proportional to 4,742.02, 7,113.07 and 1,819.63 is: 2,729.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,742.02 : 7,113.07 = 1,819.63 : x
  2. Step 2: Convert to fraction form
    4,742.02/7,113.07 = 1,819.63/x
  3. Step 3: Cross multiply
    4,742.02x = 7,113.07 × 1,819.63
  4. Step 4: Simplify right side
    4,742.02x = 12,943,155.56
  5. Step 5: Solve for x
    x = 12,943,155.56/4,742.02
  6. Step 6: Final answer
    x = 2,729.46

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Double scale
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Similar ratio
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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.