Home / 4,920.14-7,380.40-1,457.40

Finding the Fourth Proportional to 4,920.14, 7,380.40 and 1,457.40

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Solution

The fourth proportional to 4,920.14, 7,380.40 and 1,457.40 is: 2,186.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.14 : 7,380.40 = 1,457.40 : x
  2. Step 2: Convert to fraction form
    4,920.14/7,380.40 = 1,457.40/x
  3. Step 3: Cross multiply
    4,920.14x = 7,380.40 × 1,457.40
  4. Step 4: Simplify right side
    4,920.14x = 10,756,194.96
  5. Step 5: Solve for x
    x = 10,756,194.96/4,920.14
  6. Step 6: Final answer
    x = 2,186.16

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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.