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Finding the Fourth Proportional to 2,720.90, 3,746.58 and 2,347.22

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Solution

The fourth proportional to 2,720.90, 3,746.58 and 2,347.22 is: 3,232.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.90 : 3,746.58 = 2,347.22 : x
  2. Step 2: Convert to fraction form
    2,720.90/3,746.58 = 2,347.22/x
  3. Step 3: Cross multiply
    2,720.90x = 3,746.58 × 2,347.22
  4. Step 4: Simplify right side
    2,720.90x = 8,794,047.51
  5. Step 5: Solve for x
    x = 8,794,047.51/2,720.90
  6. Step 6: Final answer
    x = 3,232.04

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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.