Home / 4,590.81-6,886.17-1,428.21

Finding the Fourth Proportional to 4,590.81, 6,886.17 and 1,428.21

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Solution

The fourth proportional to 4,590.81, 6,886.17 and 1,428.21 is: 2,142.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,590.81 : 6,886.17 = 1,428.21 : x
  2. Step 2: Convert to fraction form
    4,590.81/6,886.17 = 1,428.21/x
  3. Step 3: Cross multiply
    4,590.81x = 6,886.17 × 1,428.21
  4. Step 4: Simplify right side
    4,590.81x = 9,834,896.86
  5. Step 5: Solve for x
    x = 9,834,896.86/4,590.81
  6. Step 6: Final answer
    x = 2,142.30

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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.