Home / 4,920.21-7,381.53-1,457.46

Finding the Fourth Proportional to 4,920.21, 7,381.53 and 1,457.46

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Solution

The fourth proportional to 4,920.21, 7,381.53 and 1,457.46 is: 2,186.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.21 : 7,381.53 = 1,457.46 : x
  2. Step 2: Convert to fraction form
    4,920.21/7,381.53 = 1,457.46/x
  3. Step 3: Cross multiply
    4,920.21x = 7,381.53 × 1,457.46
  4. Step 4: Simplify right side
    4,920.21x = 10,758,284.71
  5. Step 5: Solve for x
    x = 10,758,284.71/4,920.21
  6. Step 6: Final answer
    x = 2,186.55

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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.