Home / 2,031.65-2,803.69-1,245.54

Finding the Fourth Proportional to 2,031.65, 2,803.69 and 1,245.54

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Solution

The fourth proportional to 2,031.65, 2,803.69 and 1,245.54 is: 1,718.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,031.65 : 2,803.69 = 1,245.54 : x
  2. Step 2: Convert to fraction form
    2,031.65/2,803.69 = 1,245.54/x
  3. Step 3: Cross multiply
    2,031.65x = 2,803.69 × 1,245.54
  4. Step 4: Simplify right side
    2,031.65x = 3,492,108.04
  5. Step 5: Solve for x
    x = 3,492,108.04/2,031.65
  6. Step 6: Final answer
    x = 1,718.85

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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.