Home / 2,539.95-3,809.20-1,152.55

Finding the Fourth Proportional to 2,539.95, 3,809.20 and 1,152.55

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Solution

The fourth proportional to 2,539.95, 3,809.20 and 1,152.55 is: 1,728.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,539.95 : 3,809.20 = 1,152.55 : x
  2. Step 2: Convert to fraction form
    2,539.95/3,809.20 = 1,152.55/x
  3. Step 3: Cross multiply
    2,539.95x = 3,809.20 × 1,152.55
  4. Step 4: Simplify right side
    2,539.95x = 4,390,293.46
  5. Step 5: Solve for x
    x = 4,390,293.46/2,539.95
  6. Step 6: Final answer
    x = 1,728.50

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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.