Home / 2,860.34-4,288.08-2,705.63

Finding the Fourth Proportional to 2,860.34, 4,288.08 and 2,705.63

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Solution

The fourth proportional to 2,860.34, 4,288.08 and 2,705.63 is: 4,056.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.34 : 4,288.08 = 2,705.63 : x
  2. Step 2: Convert to fraction form
    2,860.34/4,288.08 = 2,705.63/x
  3. Step 3: Cross multiply
    2,860.34x = 4,288.08 × 2,705.63
  4. Step 4: Simplify right side
    2,860.34x = 11,601,957.89
  5. Step 5: Solve for x
    x = 11,601,957.89/2,860.34
  6. Step 6: Final answer
    x = 4,056.15

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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.