Home / 2,854.45-4,279.60-1,927.71

Finding the Fourth Proportional to 2,854.45, 4,279.60 and 1,927.71

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Solution

The fourth proportional to 2,854.45, 4,279.60 and 1,927.71 is: 2,890.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,854.45 : 4,279.60 = 1,927.71 : x
  2. Step 2: Convert to fraction form
    2,854.45/4,279.60 = 1,927.71/x
  3. Step 3: Cross multiply
    2,854.45x = 4,279.60 × 1,927.71
  4. Step 4: Simplify right side
    2,854.45x = 8,249,830.13
  5. Step 5: Solve for x
    x = 8,249,830.13/2,854.45
  6. Step 6: Final answer
    x = 2,890.16

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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.