Home / 2,374.12-3,275.86-1,379.40

Finding the Fourth Proportional to 2,374.12, 3,275.86 and 1,379.40

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Solution

The fourth proportional to 2,374.12, 3,275.86 and 1,379.40 is: 1,903.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,374.12 : 3,275.86 = 1,379.40 : x
  2. Step 2: Convert to fraction form
    2,374.12/3,275.86 = 1,379.40/x
  3. Step 3: Cross multiply
    2,374.12x = 3,275.86 × 1,379.40
  4. Step 4: Simplify right side
    2,374.12x = 4,518,721.28
  5. Step 5: Solve for x
    x = 4,518,721.28/2,374.12
  6. Step 6: Final answer
    x = 1,903.32

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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.