Home / 4,585.80-6,878.60-1,123.05

Finding the Fourth Proportional to 4,585.80, 6,878.60 and 1,123.05

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Solution

The fourth proportional to 4,585.80, 6,878.60 and 1,123.05 is: 1,684.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,585.80 : 6,878.60 = 1,123.05 : x
  2. Step 2: Convert to fraction form
    4,585.80/6,878.60 = 1,123.05/x
  3. Step 3: Cross multiply
    4,585.80x = 6,878.60 × 1,123.05
  4. Step 4: Simplify right side
    4,585.80x = 7,725,011.73
  5. Step 5: Solve for x
    x = 7,725,011.73/4,585.80
  6. Step 6: Final answer
    x = 1,684.55

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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.