Home / 2,261.80-3,386.30-2,031.40

Finding the Fourth Proportional to 2,261.80, 3,386.30 and 2,031.40

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Solution

The fourth proportional to 2,261.80, 3,386.30 and 2,031.40 is: 3,041.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.80 : 3,386.30 = 2,031.40 : x
  2. Step 2: Convert to fraction form
    2,261.80/3,386.30 = 2,031.40/x
  3. Step 3: Cross multiply
    2,261.80x = 3,386.30 × 2,031.40
  4. Step 4: Simplify right side
    2,261.80x = 6,878,929.82
  5. Step 5: Solve for x
    x = 6,878,929.82/2,261.80
  6. Step 6: Final answer
    x = 3,041.35

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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.