Home / 2,038.80-3,056.13-805.55

Finding the Fourth Proportional to 2,038.80, 3,056.13 and 805.55

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Solution

The fourth proportional to 2,038.80, 3,056.13 and 805.55 is: 1,207.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,038.80 : 3,056.13 = 805.55 : x
  2. Step 2: Convert to fraction form
    2,038.80/3,056.13 = 805.55/x
  3. Step 3: Cross multiply
    2,038.80x = 3,056.13 × 805.55
  4. Step 4: Simplify right side
    2,038.80x = 2,461,850.24
  5. Step 5: Solve for x
    x = 2,461,850.24/2,038.80
  6. Step 6: Final answer
    x = 1,207.50

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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.