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Finding the Fourth Proportional to 3,360.64, 4,637.28 and 1,868.18

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Solution

The fourth proportional to 3,360.64, 4,637.28 and 1,868.18 is: 2,577.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,360.64 : 4,637.28 = 1,868.18 : x
  2. Step 2: Convert to fraction form
    3,360.64/4,637.28 = 1,868.18/x
  3. Step 3: Cross multiply
    3,360.64x = 4,637.28 × 1,868.18
  4. Step 4: Simplify right side
    3,360.64x = 8,663,273.75
  5. Step 5: Solve for x
    x = 8,663,273.75/3,360.64
  6. Step 6: Final answer
    x = 2,577.86

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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.