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Finding the Fourth Proportional to 2,953.75, 4,430.99 and 901.75

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Solution

The fourth proportional to 2,953.75, 4,430.99 and 901.75 is: 1,352.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,953.75 : 4,430.99 = 901.75 : x
  2. Step 2: Convert to fraction form
    2,953.75/4,430.99 = 901.75/x
  3. Step 3: Cross multiply
    2,953.75x = 4,430.99 × 901.75
  4. Step 4: Simplify right side
    2,953.75x = 3,995,645.23
  5. Step 5: Solve for x
    x = 3,995,645.23/2,953.75
  6. Step 6: Final answer
    x = 1,352.74

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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.