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Finding the Fourth Proportional to 2,612.76, 3,606.86 and 1,762.22

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Solution

The fourth proportional to 2,612.76, 3,606.86 and 1,762.22 is: 2,432.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612.76 : 3,606.86 = 1,762.22 : x
  2. Step 2: Convert to fraction form
    2,612.76/3,606.86 = 1,762.22/x
  3. Step 3: Cross multiply
    2,612.76x = 3,606.86 × 1,762.22
  4. Step 4: Simplify right side
    2,612.76x = 6,356,094.25
  5. Step 5: Solve for x
    x = 6,356,094.25/2,612.76
  6. Step 6: Final answer
    x = 2,432.72

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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.