Home / 2,697.28-4,045.20-1,237.12

Finding the Fourth Proportional to 2,697.28, 4,045.20 and 1,237.12

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Solution

The fourth proportional to 2,697.28, 4,045.20 and 1,237.12 is: 1,855.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,697.28 : 4,045.20 = 1,237.12 : x
  2. Step 2: Convert to fraction form
    2,697.28/4,045.20 = 1,237.12/x
  3. Step 3: Cross multiply
    2,697.28x = 4,045.20 × 1,237.12
  4. Step 4: Simplify right side
    2,697.28x = 5,004,397.82
  5. Step 5: Solve for x
    x = 5,004,397.82/2,697.28
  6. Step 6: Final answer
    x = 1,855.35

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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.