Home / 4,590.40-6,885.61-1,127.65

Finding the Fourth Proportional to 4,590.40, 6,885.61 and 1,127.65

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Solution

The fourth proportional to 4,590.40, 6,885.61 and 1,127.65 is: 1,691.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,590.40 : 6,885.61 = 1,127.65 : x
  2. Step 2: Convert to fraction form
    4,590.40/6,885.61 = 1,127.65/x
  3. Step 3: Cross multiply
    4,590.40x = 6,885.61 × 1,127.65
  4. Step 4: Simplify right side
    4,590.40x = 7,764,558.12
  5. Step 5: Solve for x
    x = 7,764,558.12/4,590.40
  6. Step 6: Final answer
    x = 1,691.48

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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.