Home / 5,618.93-7,756.60-3,630.45

Finding the Fourth Proportional to 5,618.93, 7,756.60 and 3,630.45

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Solution

The fourth proportional to 5,618.93, 7,756.60 and 3,630.45 is: 5,011.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.93 : 7,756.60 = 3,630.45 : x
  2. Step 2: Convert to fraction form
    5,618.93/7,756.60 = 3,630.45/x
  3. Step 3: Cross multiply
    5,618.93x = 7,756.60 × 3,630.45
  4. Step 4: Simplify right side
    5,618.93x = 28,159,948.47
  5. Step 5: Solve for x
    x = 28,159,948.47/5,618.93
  6. Step 6: Final answer
    x = 5,011.63

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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.