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Finding the Fourth Proportional to 1,833.45, 2,750.58 and 909.51

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Solution

The fourth proportional to 1,833.45, 2,750.58 and 909.51 is: 1,364.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,833.45 : 2,750.58 = 909.51 : x
  2. Step 2: Convert to fraction form
    1,833.45/2,750.58 = 909.51/x
  3. Step 3: Cross multiply
    1,833.45x = 2,750.58 × 909.51
  4. Step 4: Simplify right side
    1,833.45x = 2,501,680.02
  5. Step 5: Solve for x
    x = 2,501,680.02/1,833.45
  6. Step 6: Final answer
    x = 1,364.47

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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.