Home / 5,621.80-7,763.70-4,636.84

Finding the Fourth Proportional to 5,621.80, 7,763.70 and 4,636.84

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Solution

The fourth proportional to 5,621.80, 7,763.70 and 4,636.84 is: 6,403.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.80 : 7,763.70 = 4,636.84 : x
  2. Step 2: Convert to fraction form
    5,621.80/7,763.70 = 4,636.84/x
  3. Step 3: Cross multiply
    5,621.80x = 7,763.70 × 4,636.84
  4. Step 4: Simplify right side
    5,621.80x = 35,999,034.71
  5. Step 5: Solve for x
    x = 35,999,034.71/5,621.80
  6. Step 6: Final answer
    x = 6,403.47

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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.