Home / 2,740.72-3,784.44-1,856.20

Finding the Fourth Proportional to 2,740.72, 3,784.44 and 1,856.20

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Solution

The fourth proportional to 2,740.72, 3,784.44 and 1,856.20 is: 2,563.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.72 : 3,784.44 = 1,856.20 : x
  2. Step 2: Convert to fraction form
    2,740.72/3,784.44 = 1,856.20/x
  3. Step 3: Cross multiply
    2,740.72x = 3,784.44 × 1,856.20
  4. Step 4: Simplify right side
    2,740.72x = 7,024,677.53
  5. Step 5: Solve for x
    x = 7,024,677.53/2,740.72
  6. Step 6: Final answer
    x = 2,563.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.