Home / 2,643.10-3,636.30-2,570.20

Finding the Fourth Proportional to 2,643.10, 3,636.30 and 2,570.20

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Solution

The fourth proportional to 2,643.10, 3,636.30 and 2,570.20 is: 3,536.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643.10 : 3,636.30 = 2,570.20 : x
  2. Step 2: Convert to fraction form
    2,643.10/3,636.30 = 2,570.20/x
  3. Step 3: Cross multiply
    2,643.10x = 3,636.30 × 2,570.20
  4. Step 4: Simplify right side
    2,643.10x = 9,346,018.26
  5. Step 5: Solve for x
    x = 9,346,018.26/2,643.10
  6. Step 6: Final answer
    x = 3,536.01

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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.