Home / 2,715.20-3,741.60-1,927.04

Finding the Fourth Proportional to 2,715.20, 3,741.60 and 1,927.04

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Solution

The fourth proportional to 2,715.20, 3,741.60 and 1,927.04 is: 2,655.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.20 : 3,741.60 = 1,927.04 : x
  2. Step 2: Convert to fraction form
    2,715.20/3,741.60 = 1,927.04/x
  3. Step 3: Cross multiply
    2,715.20x = 3,741.60 × 1,927.04
  4. Step 4: Simplify right side
    2,715.20x = 7,210,212.86
  5. Step 5: Solve for x
    x = 7,210,212.86/2,715.20
  6. Step 6: Final answer
    x = 2,655.50

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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.