Home / 2,187.16-3,278.80-1,569.32

Finding the Fourth Proportional to 2,187.16, 3,278.80 and 1,569.32

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Solution

The fourth proportional to 2,187.16, 3,278.80 and 1,569.32 is: 2,352.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.16 : 3,278.80 = 1,569.32 : x
  2. Step 2: Convert to fraction form
    2,187.16/3,278.80 = 1,569.32/x
  3. Step 3: Cross multiply
    2,187.16x = 3,278.80 × 1,569.32
  4. Step 4: Simplify right side
    2,187.16x = 5,145,486.42
  5. Step 5: Solve for x
    x = 5,145,486.42/2,187.16
  6. Step 6: Final answer
    x = 2,352.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.