Home / 3,031.80-4,547.70-2,110.20

Finding the Fourth Proportional to 3,031.80, 4,547.70 and 2,110.20

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Solution

The fourth proportional to 3,031.80, 4,547.70 and 2,110.20 is: 3,165.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.80 : 4,547.70 = 2,110.20 : x
  2. Step 2: Convert to fraction form
    3,031.80/4,547.70 = 2,110.20/x
  3. Step 3: Cross multiply
    3,031.80x = 4,547.70 × 2,110.20
  4. Step 4: Simplify right side
    3,031.80x = 9,596,556.54
  5. Step 5: Solve for x
    x = 9,596,556.54/3,031.80
  6. Step 6: Final answer
    x = 3,165.30

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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.