Home / 2,031.42-2,803.50-1,245.36

Finding the Fourth Proportional to 2,031.42, 2,803.50 and 1,245.36

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Solution

The fourth proportional to 2,031.42, 2,803.50 and 1,245.36 is: 1,718.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,031.42 : 2,803.50 = 1,245.36 : x
  2. Step 2: Convert to fraction form
    2,031.42/2,803.50 = 1,245.36/x
  3. Step 3: Cross multiply
    2,031.42x = 2,803.50 × 1,245.36
  4. Step 4: Simplify right side
    2,031.42x = 3,491,366.76
  5. Step 5: Solve for x
    x = 3,491,366.76/2,031.42
  6. Step 6: Final answer
    x = 1,718.68

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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.