Home / 3,360.80-4,637.87-1,868.71

Finding the Fourth Proportional to 3,360.80, 4,637.87 and 1,868.71

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Solution

The fourth proportional to 3,360.80, 4,637.87 and 1,868.71 is: 2,578.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,360.80 : 4,637.87 = 1,868.71 : x
  2. Step 2: Convert to fraction form
    3,360.80/4,637.87 = 1,868.71/x
  3. Step 3: Cross multiply
    3,360.80x = 4,637.87 × 1,868.71
  4. Step 4: Simplify right side
    3,360.80x = 8,666,834.05
  5. Step 5: Solve for x
    x = 8,666,834.05/3,360.80
  6. Step 6: Final answer
    x = 2,578.80

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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.