Home / 2,209.95-3,045.87-1,788.75

Finding the Fourth Proportional to 2,209.95, 3,045.87 and 1,788.75

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Solution

The fourth proportional to 2,209.95, 3,045.87 and 1,788.75 is: 2,465.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209.95 : 3,045.87 = 1,788.75 : x
  2. Step 2: Convert to fraction form
    2,209.95/3,045.87 = 1,788.75/x
  3. Step 3: Cross multiply
    2,209.95x = 3,045.87 × 1,788.75
  4. Step 4: Simplify right side
    2,209.95x = 5,448,299.96
  5. Step 5: Solve for x
    x = 5,448,299.96/2,209.95
  6. Step 6: Final answer
    x = 2,465.35

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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.