Home / 5,438.79-7,506-3,081.69

Finding the Fourth Proportional to 5,438.79, 7,506 and 3,081.69

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Solution

The fourth proportional to 5,438.79, 7,506 and 3,081.69 is: 4,253.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.79 : 7,506 = 3,081.69 : x
  2. Step 2: Convert to fraction form
    5,438.79/7,506 = 3,081.69/x
  3. Step 3: Cross multiply
    5,438.79x = 7,506 × 3,081.69
  4. Step 4: Simplify right side
    5,438.79x = 23,131,165.14
  5. Step 5: Solve for x
    x = 23,131,165.14/5,438.79
  6. Step 6: Final answer
    x = 4,253.00

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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.