Home / 2,070.90-3,106.44-1,031.40

Finding the Fourth Proportional to 2,070.90, 3,106.44 and 1,031.40

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Solution

The fourth proportional to 2,070.90, 3,106.44 and 1,031.40 is: 1,547.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,070.90 : 3,106.44 = 1,031.40 : x
  2. Step 2: Convert to fraction form
    2,070.90/3,106.44 = 1,031.40/x
  3. Step 3: Cross multiply
    2,070.90x = 3,106.44 × 1,031.40
  4. Step 4: Simplify right side
    2,070.90x = 3,203,982.22
  5. Step 5: Solve for x
    x = 3,203,982.22/2,070.90
  6. Step 6: Final answer
    x = 1,547.14

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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.