Home / 2,031.80-2,803.68-1,147.44

Finding the Fourth Proportional to 2,031.80, 2,803.68 and 1,147.44

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Solution

The fourth proportional to 2,031.80, 2,803.68 and 1,147.44 is: 1,583.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,031.80 : 2,803.68 = 1,147.44 : x
  2. Step 2: Convert to fraction form
    2,031.80/2,803.68 = 1,147.44/x
  3. Step 3: Cross multiply
    2,031.80x = 2,803.68 × 1,147.44
  4. Step 4: Simplify right side
    2,031.80x = 3,217,054.58
  5. Step 5: Solve for x
    x = 3,217,054.58/2,031.80
  6. Step 6: Final answer
    x = 1,583.35

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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.