Home / 3,124.40-4,686.55-933.14

Finding the Fourth Proportional to 3,124.40, 4,686.55 and 933.14

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Solution

The fourth proportional to 3,124.40, 4,686.55 and 933.14 is: 1,399.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.40 : 4,686.55 = 933.14 : x
  2. Step 2: Convert to fraction form
    3,124.40/4,686.55 = 933.14/x
  3. Step 3: Cross multiply
    3,124.40x = 4,686.55 × 933.14
  4. Step 4: Simplify right side
    3,124.40x = 4,373,207.27
  5. Step 5: Solve for x
    x = 4,373,207.27/3,124.40
  6. Step 6: Final answer
    x = 1,399.70

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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.