Home / 1,879.46-2,594.40-1,356.20

Finding the Fourth Proportional to 1,879.46, 2,594.40 and 1,356.20

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Solution

The fourth proportional to 1,879.46, 2,594.40 and 1,356.20 is: 1,872.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,879.46 : 2,594.40 = 1,356.20 : x
  2. Step 2: Convert to fraction form
    1,879.46/2,594.40 = 1,356.20/x
  3. Step 3: Cross multiply
    1,879.46x = 2,594.40 × 1,356.20
  4. Step 4: Simplify right side
    1,879.46x = 3,518,525.28
  5. Step 5: Solve for x
    x = 3,518,525.28/1,879.46
  6. Step 6: Final answer
    x = 1,872.09

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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.