Home / 3,360.40-4,637.13-1,868.29

Finding the Fourth Proportional to 3,360.40, 4,637.13 and 1,868.29

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Solution

The fourth proportional to 3,360.40, 4,637.13 and 1,868.29 is: 2,578.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,360.40 : 4,637.13 = 1,868.29 : x
  2. Step 2: Convert to fraction form
    3,360.40/4,637.13 = 1,868.29/x
  3. Step 3: Cross multiply
    3,360.40x = 4,637.13 × 1,868.29
  4. Step 4: Simplify right side
    3,360.40x = 8,663,485.09
  5. Step 5: Solve for x
    x = 8,663,485.09/3,360.40
  6. Step 6: Final answer
    x = 2,578.12

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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.