Home / 2,364.14-3,545.16-720.40

Finding the Fourth Proportional to 2,364.14, 3,545.16 and 720.40

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Solution

The fourth proportional to 2,364.14, 3,545.16 and 720.40 is: 1,080.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,364.14 : 3,545.16 = 720.40 : x
  2. Step 2: Convert to fraction form
    2,364.14/3,545.16 = 720.40/x
  3. Step 3: Cross multiply
    2,364.14x = 3,545.16 × 720.40
  4. Step 4: Simplify right side
    2,364.14x = 2,553,933.26
  5. Step 5: Solve for x
    x = 2,553,933.26/2,364.14
  6. Step 6: Final answer
    x = 1,080.28

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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.