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Finding the Fourth Proportional to 3,360.65, 4,637.47 and 1,868.47

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Solution

The fourth proportional to 3,360.65, 4,637.47 and 1,868.47 is: 2,578.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,360.65 : 4,637.47 = 1,868.47 : x
  2. Step 2: Convert to fraction form
    3,360.65/4,637.47 = 1,868.47/x
  3. Step 3: Cross multiply
    3,360.65x = 4,637.47 × 1,868.47
  4. Step 4: Simplify right side
    3,360.65x = 8,664,973.57
  5. Step 5: Solve for x
    x = 8,664,973.57/3,360.65
  6. Step 6: Final answer
    x = 2,578.36

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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.