Home / 1,874.86-2,585.52-1,211.94

Finding the Fourth Proportional to 1,874.86, 2,585.52 and 1,211.94

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Solution

The fourth proportional to 1,874.86, 2,585.52 and 1,211.94 is: 1,671.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.86 : 2,585.52 = 1,211.94 : x
  2. Step 2: Convert to fraction form
    1,874.86/2,585.52 = 1,211.94/x
  3. Step 3: Cross multiply
    1,874.86x = 2,585.52 × 1,211.94
  4. Step 4: Simplify right side
    1,874.86x = 3,133,495.11
  5. Step 5: Solve for x
    x = 3,133,495.11/1,874.86
  6. Step 6: Final answer
    x = 1,671.32

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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.