Home / 2,852.40-4,278.56-904.62

Finding the Fourth Proportional to 2,852.40, 4,278.56 and 904.62

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Solution

The fourth proportional to 2,852.40, 4,278.56 and 904.62 is: 1,356.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,852.40 : 4,278.56 = 904.62 : x
  2. Step 2: Convert to fraction form
    2,852.40/4,278.56 = 904.62/x
  3. Step 3: Cross multiply
    2,852.40x = 4,278.56 × 904.62
  4. Step 4: Simplify right side
    2,852.40x = 3,870,470.95
  5. Step 5: Solve for x
    x = 3,870,470.95/2,852.40
  6. Step 6: Final answer
    x = 1,356.92

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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.