Home / 4,854.40-7,284.80-1,776.40

Finding the Fourth Proportional to 4,854.40, 7,284.80 and 1,776.40

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Solution

The fourth proportional to 4,854.40, 7,284.80 and 1,776.40 is: 2,665.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,854.40 : 7,284.80 = 1,776.40 : x
  2. Step 2: Convert to fraction form
    4,854.40/7,284.80 = 1,776.40/x
  3. Step 3: Cross multiply
    4,854.40x = 7,284.80 × 1,776.40
  4. Step 4: Simplify right side
    4,854.40x = 12,940,718.72
  5. Step 5: Solve for x
    x = 12,940,718.72/4,854.40
  6. Step 6: Final answer
    x = 2,665.77

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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.