Home / 4,290.88-5,920.80-2,402.22

Finding the Fourth Proportional to 4,290.88, 5,920.80 and 2,402.22

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Solution

The fourth proportional to 4,290.88, 5,920.80 and 2,402.22 is: 3,314.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,290.88 : 5,920.80 = 2,402.22 : x
  2. Step 2: Convert to fraction form
    4,290.88/5,920.80 = 2,402.22/x
  3. Step 3: Cross multiply
    4,290.88x = 5,920.80 × 2,402.22
  4. Step 4: Simplify right side
    4,290.88x = 14,223,064.18
  5. Step 5: Solve for x
    x = 14,223,064.18/4,290.88
  6. Step 6: Final answer
    x = 3,314.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.