Home / 2,697.68-4,047.28-2,440.64

Finding the Fourth Proportional to 2,697.68, 4,047.28 and 2,440.64

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Solution

The fourth proportional to 2,697.68, 4,047.28 and 2,440.64 is: 3,661.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,697.68 : 4,047.28 = 2,440.64 : x
  2. Step 2: Convert to fraction form
    2,697.68/4,047.28 = 2,440.64/x
  3. Step 3: Cross multiply
    2,697.68x = 4,047.28 × 2,440.64
  4. Step 4: Simplify right side
    2,697.68x = 9,877,953.46
  5. Step 5: Solve for x
    x = 9,877,953.46/2,697.68
  6. Step 6: Final answer
    x = 3,661.65

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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.