Home / 5,712.77-7,880.82-3,587.24

Finding the Fourth Proportional to 5,712.77, 7,880.82 and 3,587.24

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Solution

The fourth proportional to 5,712.77, 7,880.82 and 3,587.24 is: 4,948.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,712.77 : 7,880.82 = 3,587.24 : x
  2. Step 2: Convert to fraction form
    5,712.77/7,880.82 = 3,587.24/x
  3. Step 3: Cross multiply
    5,712.77x = 7,880.82 × 3,587.24
  4. Step 4: Simplify right side
    5,712.77x = 28,270,392.74
  5. Step 5: Solve for x
    x = 28,270,392.74/5,712.77
  6. Step 6: Final answer
    x = 4,948.63

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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.