Home / 5,289.81-7,299.55-2,899.40

Finding the Fourth Proportional to 5,289.81, 7,299.55 and 2,899.40

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Solution

The fourth proportional to 5,289.81, 7,299.55 and 2,899.40 is: 4,000.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.81 : 7,299.55 = 2,899.40 : x
  2. Step 2: Convert to fraction form
    5,289.81/7,299.55 = 2,899.40/x
  3. Step 3: Cross multiply
    5,289.81x = 7,299.55 × 2,899.40
  4. Step 4: Simplify right side
    5,289.81x = 21,164,282.40
  5. Step 5: Solve for x
    x = 21,164,282.40/5,289.81
  6. Step 6: Final answer
    x = 4,000.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.