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Finding the Fourth Proportional to 2,852.52, 4,278.80 and 904.92

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Solution

The fourth proportional to 2,852.52, 4,278.80 and 904.92 is: 1,357.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,852.52 : 4,278.80 = 904.92 : x
  2. Step 2: Convert to fraction form
    2,852.52/4,278.80 = 904.92/x
  3. Step 3: Cross multiply
    2,852.52x = 4,278.80 × 904.92
  4. Step 4: Simplify right side
    2,852.52x = 3,871,971.70
  5. Step 5: Solve for x
    x = 3,871,971.70/2,852.52
  6. Step 6: Final answer
    x = 1,357.39

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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.