Home / 2,920.22-4,381.70-1,277.24

Finding the Fourth Proportional to 2,920.22, 4,381.70 and 1,277.24

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Solution

The fourth proportional to 2,920.22, 4,381.70 and 1,277.24 is: 1,916.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.22 : 4,381.70 = 1,277.24 : x
  2. Step 2: Convert to fraction form
    2,920.22/4,381.70 = 1,277.24/x
  3. Step 3: Cross multiply
    2,920.22x = 4,381.70 × 1,277.24
  4. Step 4: Simplify right side
    2,920.22x = 5,596,454.21
  5. Step 5: Solve for x
    x = 5,596,454.21/2,920.22
  6. Step 6: Final answer
    x = 1,916.45

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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.