Home / 3,465.12-4,780.50-2,136.51

Finding the Fourth Proportional to 3,465.12, 4,780.50 and 2,136.51

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Solution

The fourth proportional to 3,465.12, 4,780.50 and 2,136.51 is: 2,947.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,465.12 : 4,780.50 = 2,136.51 : x
  2. Step 2: Convert to fraction form
    3,465.12/4,780.50 = 2,136.51/x
  3. Step 3: Cross multiply
    3,465.12x = 4,780.50 × 2,136.51
  4. Step 4: Simplify right side
    3,465.12x = 10,213,603.35
  5. Step 5: Solve for x
    x = 10,213,603.35/3,465.12
  6. Step 6: Final answer
    x = 2,947.55

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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.