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Finding the Fourth Proportional to 2,953.40, 4,430.10 and 1,843.70

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Solution

The fourth proportional to 2,953.40, 4,430.10 and 1,843.70 is: 2,765.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,953.40 : 4,430.10 = 1,843.70 : x
  2. Step 2: Convert to fraction form
    2,953.40/4,430.10 = 1,843.70/x
  3. Step 3: Cross multiply
    2,953.40x = 4,430.10 × 1,843.70
  4. Step 4: Simplify right side
    2,953.40x = 8,167,775.37
  5. Step 5: Solve for x
    x = 8,167,775.37/2,953.40
  6. Step 6: Final answer
    x = 2,765.55

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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.